Top 10 Best Water Filters Compared for Clean Drinking – Expert Picks

“I haven’t used them yet but with the positive feedback and the fact that we may need these at some point was proof enough that we all need to prepare! I know family members have had these in their homes and have talked highly about them!” – Customer Review

“I liked the fact that they can be screwed on to a 2 liter bottle. I haven’t used yet but they looked very good. Each one filters like 18,000 gallons . The average person uses 1800 a year. So if I’m figuring correctly, you can get 10 years from 1 straw. Now we will be using clean water to wash with, make food with, etc, etc. Not only for drinking. SO anyway 1 person would have enough filters for 50 years. What a great deal!” – Customer Review

“The tap water in this 50+ year old apartment building is not optimal quality. The Culligan filtration system works simply and easily to provide cleaner, safer, delicious, purified drinking water. The resulting water is clear and has no odor.Although more expensive than the PüR filtration system I had used for many years, this Culligan cleans the water far, far better. Using it is still much cheaper than buying bottled water.” – Customer Review

“The dispenser is easy to set up and clean. The easy fill sliding lids and handles make it very portable and refills are very quick. The filtered water tastes noticeably cleaner, crisper, and better than the tap and our previous Brita filter.” – Customer Review

“I feel extremely excited writing this review.I ordered this water filter system after spending many hours browsing for a water filter that was reasonably priced and offered the best filtration system for a clean supply of water.This filter was the only one in our search that offered exceptional value for our money.Not only did it not have any requirement for periodic change of filters which most other systems require, but it also had the most thorough filtration process making the water extremely clean and pure.And another amazing feature of this darling was that it was so easy to install and the system was not a bulky item. This beautiful system also offered a life of 5 years. No other filtration system we saw offered this for such an amazing price.We have been using this filter for over a month now, and we are the happiest people. We have tested the water using testing strips and the results are always positive for pureness. We use the water for all kitchen purposes with peace of mind and the water tastes crisp. This system is saving us 50 dollars a week which we used to spend buying water cans from the store. Not to forget to mention the amount of nano plastics we were injestic from these plastics cans which this system has now put an end to.This review will not be complete without mentioning the extraordinary customer service that the owners of this system provide. The team is exceptional and they are with us till the installation is complete and running smoothly. Every step of the installation process they offered guidance and shipped the required installation accessories free of charge, including a small filter system to remove TDS. They were readily available for troubleshooting and followup. And they promise replacement if we encounter any problems during the 5 year period. No company offers such a sweet deal and keeps cutomer first. Thank you Cuzn Family. We are very happy that we became part of the Cuzn family.Extremely happy customer for life.” – Customer Review

“I don’t have a single bad thing to say about this filter. It’s super well made, super easy to install and the water tastes as good as my old triple stage reverse osmosis unit. After a pretty exhaustive search, I don’t think you can do better in this price range.Construction- Really well built. Heavy and sturdy. They did a great job. It looks like the person or people that made this really cared about the kind of water you are going to drink as opposed to how to cost effectively deliver a decent water filter. Still, at $119.00 this is great and in person, it looks/feels a lot more well built than it does online.Installation- First off I love how this can just stand in the corner and not get in the way of anything. I’ve tried a few other filters and they took more work to get them out of the way. The hose it came with didn’t look cheap and matched the hose I already have that attaches to the faucet. Also where you mount the existing hose to the sink is built into the filter. So many other under the sink filters have another hose that connects with a male to male adapter. This reduces clutter and makes it really easy to install.Size- It’s pretty big and it’s a lot more filter than you would think when looking at the pics. Make sure you know how much room you have under your sink. Still, I had a lot of room left before it would hit the top. There is a lot of filtration going on.Water Flow- It’s almost unnoticeable after it’s installed. My wife or nanny didn’t even notice the difference. I was really worried about an under the sink filter because I knew any good filter would probably not filter water as well if it had high flow. I tried some, like the Woder 10K and the Hansing 13k. They weren’t bad but neither flowed like this. My main concern with the faucet was too much reduced cold water flow would cause the hot water to be too hot but this is really close.Water Taste- Not only does this flow well the water tastes really good. The place we moved to couldn’t house our Reverse Osmosis unit so I had a lot of trouble finding something comparable. Luckily we now have much better water so I didn’t need as much filtration to get the same taste. It blew away the Hansing 13K and is noticeably better than the Woder 10k. It also blew doors on some sink top filters I tried as well like the CleanWater4Less and Apex Countertop Waterfilter. The water is clean and crisp. Before this the water from the other filters didn’t taste that great and sometimes made my stomach a little off. Nothing bad but just wasn’t settled like it use to be. Now the Woder 10k wasn’t bad and I could have probably lived with it but the CuZn was so much better.After being unsatisfied with all these highly rated countertop and under sink filters I finally found the right one. It tastes like bottled water and I’m so happy I took the time to write up this review. I feel like I owe it to this company for standing so far out above the competition. Hopefully, it will help others in a similar situation as myself. I’m buying their refrigerator line filter next and my incredibly frustrating search for a good water filter is finally over. Thanks CuZn and you make a really great product. I don’t think there is a better under the sink filter in this price range or even a good bit higher that can do what the CuZn does.” – Customer Review

“Excellent product for a very good price. I didn’t know exactly what I was looking for but I wanted a solution to constantly refilling my large water bottles. Initially I thought a pitcher would be right for me but my refrigerator is compact. I also at times need large volumes of clean water for myself, my cat, and my delicate plants. IceJoy really checked off all the boxes! The water tastes great! Just follow simple step-by-step instructions. My unit arrived fast and the packaging is top notch. The unit is well made, durable materials, and the stand is strong. Assembly is extremely simply but be mindful that the instructions and diagram, at least in my case, are for a slightly different model. For my model, you must first push the small metal cap onto the outflow pipe, followed by the silicone washer. For some reason i was given a set of both cap and washer, but you’ll only need one of each. Push these pieces all the way down the outflow pipe and you can now attach the spigot to the reservoir using the metal nut as shown in the included diagram. I’ve included a photo of what I’m describing for clarity. Hoping this will last a while and I’m already considering a second unit for my mother. Also, I read that other brand filters could also fit this model.” – Customer Review

“I literally don’t know what to think about this??? I bought the 2.25 Carbon Block IceJoy gravity water filter system in order to stop having to buy bottled water and to reduce my microplastic consumption.I followed the setup instructions exactly and ran 3 cycles of water through the system. I bought a water tester and was so excited to see how wonderful my 4th batch was going to be, but am shocked to discover that it actually made my water LESS filtered! And no, it’s not a faulty water tester.. see my photos.I mean, has this happened to anyone else?? Is this normal?? This is my first time using a water filter system of this kind but I really thought it was going to be a great experience. If anyone knows why this happened, please post because otherwise I will be returning this asap. I’m so disappointed!” – Customer Review

“We’ve been searching for a 3-Stage Filter System for a while now. With having limited cabinet space under our kitchen sink area we didn’t want a larger tank system. We’ve owned a iSpring spin down whole home sediment filter for years now and it has worked out perfectly for us. Plus iSpring’s customer service is hands down the best so it was a no brainer for us to strongly consider their product options while researching. In the end, we picked this iSpring 3 Stage Water Filtration System because of their strong reputation for quality made products, outstanding customer service, providing piece of mind and their real NSF / ANSI 58 Certified Water Filters all topped our list. Other great things about this system are that it requires No Electricity, provides a High Continuous Flow Rate without any wasted water going down the drain. Plus it has No Bulky Tank taking up more valuable space under your cabinet. The installation was very fast, effortless and simple. They have produced à great installation video that shows how to complete each simple step. It was so easy that my wife could had installed it by herself. From start to finish I had the unit completely installed and operating in only about 15 mins. They include everything you’ll possible need to complete the installation. Right out of the box you will feel, see and discover this systems superior engineered quality. It’s packed very well and they have designed every component with dependability, performance, ease of use and a long service life in mind. The faucet is absolutely beautiful and it operates very smoothly. It fit directly and perfectly right into one of the factory pre drilled holes in our Kitchen Sink. Plus it can also be easily installed and tightened from above your sink or counter top also. iSpring has truly thought of everything! We also love how well the filter unit fits under our cabinet. Best of all we love how much better tasting and safer our drinking water is now! The price is great when compared to the other brands. So save yourself time, prevent future headaches, protect your Family’s Health and order à iSpring 3-Stage Water Filter System for your home today. Honestly, I would give it 10 Stars if I could!” – Customer Review

“I bought this system to filter water for a plumbed Keurig K150P coffee maker. The one filter solution recommended by Keurig is not that good. The filter quality or capacity is nowhere near the level that iSpring offers. It takes 2 stages to get the Chlorine taste out of the water. This 3-Stage system is outstanding. The water taste great and there is zero waste like there is with an RO system.I believe this is one of the best water filtration systems on the market. The price is fair, the company has an excellent reputation, the filters are built well, and it comes with every piece and part needed to hook it up. Most systems require a few trips to Home Depot to figure out all of the parts, line sizes, etc. that is needed. This one comes with everything you need including a faucet! I personally did not use the faucet and plumbed directly to a coffee maker, but it is certainly nice that they provided one. I assume most will use this system for drinking water. It is also super easy to Tee one of the lines if you want to provide filtered water to more than one location (e.g. Ice Maker, Coffee maker). These 1/4″ plastic T’s work perfectly (https://www.amazon.com/gp/product/B013ZX72ZE). The company ships more than enough feed line for most normal sized kitchens. If you need more it is easy to find 1/4″ plastic ice maker line. They sell it everywhere.The only thing to keep in mind is this is not a small unit. It is big. It takes up a lot of space and it needs to be screwed to a wall/cabinet. It would not be a good idea to let it stand on its own. If it fell over it could cause problems with filtration. The advantage to the size, however, is it has room to hold quality filters. It does a great job cleaning the water. Our coffee tastes as good, or better, than most commercial shops.I am very, very pleased with this purchase. I highly recommend iSpring. Their customer service is excellent as well. Email them any question you have and they respond quickly.” – Customer Review

“2026/02/14 Update:Have had this for 2 years. Still is working good. The filter quality somehow feels like has improved. Currently on the 12th filter. One of them lasted for almost 70 days. I bought original Zero 8 filters pack on subscribe and save last year for almost same price as 6.The last filter was a surprise. I started tasting a little sourness in the water. Checked the TDS, it had jumped to 186, way more than the background of around 83. The only thing I can guess is that the filter or pitched might have somehow developed some organic growth. Replaced the filter, cleaned the pitcher and put a new one. Everything is back to normal.I understand Zero has now been purchased by Culinan. I do not know what to make of it. On one hand, I have drank Culinan water at my work and found it good on the other hand I hope Culinan does not go into corporate profits mode to destroy this brand.2025/02/21 Update:Today marks the to-date anniversary since this pitcher has been operational. So far I am onto my 7th filter (currently showing 3 ppm). So each have lasted an average of approx. 50 days. The longest I got was the 5th one for about 74 days, when I changed my refrigerator filter, which dropped the water quality to 75 ppm from 120 ppm. The shortest one has been the 6th one for 26 days, since for the last 2 months we have had extended family staying with us so the usage has almost tripled.The spigot is still working, despite of being flimsy, there are no issues with the pitcher, which I wash once every 4 to 5 months especially the lid with diluted vinegar. I am yet to notice a bad filter as some other reviewers have stated.Original Review:Background:I am a big fan of Project Farm channel on YouTube. The gentleman not only tests competitive products with innovative tests and procedures, but also refuses to be sponsored and buys all the products himself based on comments from public. He also divides qualitative and quantitative scores to recommend an overall winner. So when his test results showed the ZeroWater filter comparable to $300 products, we decided to purchase it.The size of container may vary based on your needs. We decided to get the 32-cup one based on the price and usage. We use about 1 to 1.5 gallons of water a day. Since we bought this in February, we are currently onto our 4th filter, with each lasting on an average 50 days till the TDS goes above recommended 6 ppm.Pros:1. Price – both for the container and the replacement filters. We bought the initial setup for about $25. The replacement 6 unit filter cost us $55 on sale at Target. Subscribe and Save here costs about $70, which is $12/unit. For our usage of 50 – 75 gallons, it ends up being roughly 16 to 24 cents per gallon.2. Filtration – it indeed has a TDS of 0 ppm when new. I verified it with a calibrated meter, which matched with the supplied meter. In fact, the filter maintains its level of 0 ppm up to 5 weeks, and then starts dropping in efficiency rapidly.3. Installation and removal of the filter is easy. No need to saturate the filter for a few minutes before using it as some other filters do.4. Taste of water is good, it is slightly sweet. The water does not have any odor.5. The container came very well packaged with clear instructions, not that they are needed. However, it is important to know how to initiate the filter, given as mentioned, some may need to be saturated.6. The container seems to be of decent quality.Cons:1. The spigot seems flimsy, not that it has broken, but don’t force it to open.2. The lid has sliding mechanism to put water in top, which can collect dust and sludge beneath it.3. It can be addictive, as you can drink more water – not a bad thing.Things to Watch:The filter has very small opening at the bottom. As a result, the flow is very slow. So if you want filtered water pronto, then you have to plan.Also, I recommend to not empty the container beyond the bottom of the filter. It seems like the air gets trapped into it making the filter difficult to work. I threw my second filter even though it was showing 0 ppm. If you do notice the slowdown and if the water quality is still below 6 ppm, I recommend to directly pour water on top of the filter from 12 to 15 inches. This seems to have worked for me. Since, then, every week for one refill I do that just to flush air and try not to empty the container too much.Another thing to increase life is to double filter with water from the refrigerator. Since those filters are mostly joke (our refrigerator filter drops the TDS to 125 from the background of 140), it will at least enhance some of the life. Other method would be to use used ZeroWater filter and a smaller container and pour from that, till the TDS goes close to 50 ppm or so.Bottomline:Given the issues with microplastics, lack of recyclability, lax regulations for water quality, we have pretty much reduced our usage of bottled water after this unit. We use it for all our potable needs. Add to that the cost of $0.20 per gallon with a good tasting water, you cannot beat that. This is a good quality filtration system.” – Customer Review

“I decided to measure my pH, TDS, EC, Salinity, and Temperature of my tap water (straight from the sink). I also decided to measure this by the water filtration method we are using (Zero Water – pitcher)I did a couple of scenarios as in my baseline tap water cup. The second one was a current cup filled from a previous filter change. This means it had multiple refills of the water and our current pitcher being used. So probably like 3-7 pitchers already drank.The other test was from a new separate zero water pitcher that has had only one single drain using all 64ozs. I’ve labeled it as SINK, PITCHER A & PITCHER B each of the pitchers filters had just been changed and I wanted to have a separate comparison for each. I do want to see this tested again after the filter is ready to be renewed (as Zero water suggests it at 006ppm)I really am surprised that the basic tester Zero water gives you is actually good enough just to show you how much bad or good it is working. I did notice that the tested I used which had the ability to test multiple ways was by far a better method and way more reliable andrs accurate in my opinion. Below is the list of tests I have found for my own personal experience and test. I suggest you check it out yourself. Especially when you talk about the difference between the SINK water and the water from the SHOWER/Bathroom Sink. It’ll open up your eyes as to why the bathroom was irritating the SKIN for some of the people in my household. I would recommend getting the AquSoft tester & the Zero water filter for drinking. Aside from reverse osmosis filters, this is hands down the best option for those on a budget and are very interested in their own health.The pitcher itself is a durable, easy to clean pitcher. The neutral colouring helps you easily to see when the pitcher gets dirty so you can wash with soap and water and start using it again. The only thing that I can mention about the filter changes would be to make sure you TIGHTEN the filter on correctly (threaded properly). Plus do not, over tighten the tension between the two (pitcher & filter). Otherwise you might have some difficulties removing the old one. So far I haven’t had any issues after not trying to tighten it too hard. We drink and use the filtered water for everything. Coffee, tea and cooking etc. You name it and we try using it. Way better than plastic bottles. Might cost a bit more but it’s way worth it for us.-=-=-=-=-=-=CUP-1 = SINK (TAP WATER)Zero Water Tester probe325567ppm75.2°549ppm74.1°567ppm73.7°1156us/cm73.4°1155us/cm73.2°1151us/cm73.2°0.05% Salinity73.0°0.05% Salinity73.0°0.05% Salinity73.0°7.91ph73.0°7.79ph73.0°7.74ph73.0°-=-=CUP-2 = ZERO Pitcher AZero Water Tester probe000001ppm74.3004ppm74.8°002ppm75.0°006us/cm75.2°007us/cm75.3°01175.3°000% Salinty75.5°000% Salinity75.5°000% Salinity76.5°6.01ph75.5°5.86ph75.5°5.78ph75.5°-=-=CUP-3 = ZERO Pitcher BZero Water Tester probe000000ppm75.0°000ppm75.0°000ppm74.8°000us/cm74.8°000us/cm74.8°000us/cm74.8°000% Salinty74.8°000% Salinity74.8°000% Salinity74.6°6.30ph74.6°6.13p74.6°6.07ph74.6°” – Customer Review

“My wife and I got this because of the price, and because – at the risk of sounding pretentious – we needed something to handle cleaning our foul-smelling tap water. The unit has a very unique wood-lam wrap on the handle that looks cool too.As for the filter, some of my draw was the somewhat unique filter set up. Because of how wide the porous surface is, it theoretically should filter quicker than your typical cylindrical filter.Overall, I think that this product had worked quite well for us! We got this back 2 months ago, mid July of 2017, and we have been using/refilling it every day and a half or so. Still going strong on our first filter (though to be clear YMMV depending on a number of factors), but we did pick up a refill pack to make sure we’ll be good to go once that runs out. We think it has been doing a pretty solid job of keeping our water clean, it filters pretty fast (empties the reservoir in about 10 seconds, I think? I’ll double check when I get home), and has been solid for us. Anecdotally, one of our friends has told us he’s fairly sensitive to what’s in his drinking water, but thought our water from this pitcher tasted very good. As a bonus, it has a little door/flap that lets you fill the unfiltered water reservoir without removing the lid.One thing that I’d like to see updated in the design (neutral): the pitcher is somewhat small, so keep in mind that if you need to refill the full thing, it will take a few fills of the unfiltered water reservoir. Now knowing our needs better,I think we personally will be watching for a larger version of the pitcher.Only real con is that the handle is fairly narrow, so it can get a little uncomfortable when putting a full pitcher. But that is fairly nitpicky. It also is somewhat a trade-off for the aesthetic (but still could maybe be improved upon).Also just a note, when you begin soaking and running water over the filter (preparing to insert it into the pitcher the first time), you may notice the material that can be seen through the top holes moving around. This weirded me out at first because I did not notice this, and then saw that the material looked like different colors (ie as though something were wrong with the filter). However just a little bit of jostling while soaking the filter seemed to ‘fix’ what I as seeing. (Full disclosure, it probably didn’t actually change anything in the filter performance, likely just something that changed the appearance)” – Customer Review

“Very nicely designed. Sooo much better than other water filters I’ve used. Great tasting water, simple…no removing the lid to fill….easy change-filter reminder dial, light weight and attractive. Filters water much more efficiently and quickly and the filters last a good long time… Lot’s of value!” – Customer Review

“I bought the LCF Upgrade Countertop Water Filter and had it shipped to Argentina. I was initially worried about compatibility, but it came with multiple adapters and one fit perfectly.Installation was super easy and took just a few minutes. The water flow is strong, color is crystal clear and tastes great (no more chlorine!). I feel confident knowing it’s properly filtered and healthier. Highly recommend!” – Customer Review

“This has been a gem, a treasure of a find. I currently live in a city with some of the worst most toxic smelling, off gassing and feeling water, arguably on the planet. And this filter totally obliterated any hint of those toxic abominations our city water division puts in our water to ‘treat’ it. 2 filters 8000 gallons each was it – these filters last a long time and I use this water for washing dishes daily, cleaning my hands a lot, washing my face and other things meaning, I use these filters at high volumes and they continue filtering well – and I can tell especially since I use them for drinking water. They remove fluoride to which is said to make you smarter, more spiritually aware while drastically reducing cancer risk – but you can do your own research on that since that is such a ‘controversial’ topic. Now if these guys could just make a high volume shower filter to this quality that would be great!” – Customer Review

“This is the first water pitcher filter I’ve had, but I think it’s great. I no longer need to buy the numerous 3 L bottles of spring water I’ve been getting for decades, lugging them from the supermarket every week. Also, I don’t have to worry about microplastics in bottled water.This water pitcher filter usually gets the best reviews of comparisons with other water filter pitchers, removing more harmful contaminants overall than the others, including fluoride, which I am particularly concerned about because I don’t want to drink it, and my city, as is the case with about 80% the municipalities in the country, fluoridates their water. I sent out a sample of water filtered with my Clearly Filtered Water Pitcher specifically for a fluoride test, as several reviews that tested it said it had no detectable fluoride, but a couple others found some–in one test it only removed 33% of the fluoride and in another it actually actually increased the fluoride something like 160% over the unfiltered water, but those results were probably false readings because of the testing methods used. My results came back with no detectable fluoride, and my city, according to the testing company’s data, fluoridates the water to 0.71 PPM at the water facility, and at the tap it is 0.5 PPM. I don’t know of any other water filter pitcher that effectively removes fluoride like this one, except one that is said to add aluminum.The filters for this are claimed to last about twice as long as other brands, lastng about three months if the picture is filled every day. I’ve used the filter about two months now, although only filling the pitcher about every other day (in which case it should last six months), as I mainly use it for coffee, and although the filtration has slowed from when I first got it it’s not too bad–it seems to slow more in the bottom third of water left in the reservoir. The filtered water tastes fresh and free of the taste or chlorine by-products you often get from tap water, and works very well with coffee. Because I use it for coffee, I keep the pitcher unrefrigerated on the kitchen counter, shaded from the spotlights by being stored under the shadow of cabinets and a microwave oven.I think the Clearly Filtered Water Picture it is well-made and designed, but be sure you are getting one with the newly modified reservoir that came out about a month ago, which Clearly Filtered accommodatingly sent me free as a replacement, which has two vertical ribs on the front of the reservoir to take up the space between it and the body of the pitcher; the ribs prevent the bottom of the reservoir from swiveling forward in front and raising up about a quarter of an inch above the top edge when pouring. The only downside is it makes the reservoir harder to remove, as I was afraid to pull too hard on the attached front half of the lid. As opposed to some other comments I’ve read, I do have confidence in the strength of the handle attachment to support the full weight of the pitcher when full.Within the last year, they redesigned the priming bag, which is now clear instead of blue, to be easier and more effective to use, and I had no problem with it. (When I first tried to remove the priming bag, for several minutes I ridiculously tried to unscrew the top rim of the filter, which is permanently attached, instead of the primer bag itself, which screws on and off easily.)The company customer service through Amazon messaging is very responsive, and as I mentioned, they sent me the improved replacement reservoir for free when it was available.” – Customer Review

“A lot like Brita but supposed to filter out a lot more chemicals, etc. I will say it takes quite some time to filter the water. So you can only add so much at a time. The water taste great there is no odor to the water after it’s filtered. Price is a little high, but so be it.” – Customer Review

“I’ve installed the iSpring water filtration system for not just myself, but for my entire family—six households in total—and the experience has been consistently excellent across the board.The system itself is reliable, efficient, and delivers noticeably clean, great-tasting water. Installation was straightforward, and once set up, it runs smoothly with minimal maintenance. It’s given all of us peace of mind knowing we’re drinking high-quality filtered water every day.What really stands out, though, is the customer support. Nick has been incredibly helpful—always responsive, knowledgeable, and patient when answering any questions we had about installation, maintenance, or system performance. It’s rare to find that level of support, and it makes a big difference.Overall, I highly recommend iSpring to anyone considering a water filtration system. Between the product quality and outstanding customer service, it’s been a great investment for my entire family.” – Customer Review

“This is a great system if you want water that tastes as good as high quality bottled water. We had a whole house sediment filter that removed some of the ‘dirt’ from our city water but it still had a chlorine taste so I got a single stage filter. That was a nice addition, it removed the chlorine taste and made the water more drinkable but it still tasted ‘off’. So I got and installed a 3 stage filter. While somewhat better than the single stage filter, the 3 stage was still lacking what we were getting delivered in 5 gallon bottles for our water cooler. I can’t give it a fair description but it was still just a little off. I was hesitant to pull the trigger on this full RO system for a few reasons. 1 being cost. I thought the filter replacement would be costly and frequent. Turns out it is only about $70/yr. Which is not bad for bottled water quality water any time you want it. Our water delivery is about $30/mo so this works out to be quite a bit cheaper. I was also concerned about the size of the system. With the storage tank and the 6 filters, this isn’t a ‘small’ system that you can tuck under a sink. Unless you have a giant area under your sink this does take up quite a bit of room. But for the quality of water this system produces, I feel it is worth the sacrifice. We just need to get a little more creative with how many cleaners and dust pans we keep under the sink now. And I’ve also seen people set this up in their basement and then run the lines up to the sink, which could also be an answer for some with space concerns.Overall I should have just installed this unit in the first place. It would have saved me about $400 in single stage and 3 stage filter setups. This is the one to get! Also there’s a guy on YouTube that goes by ‘The Fixit Shed’ who has an excellent installation video. If you’ve ever done any plumbing before, set aside 2-3 hours and you can just go step by step through the video. My only advice is the tubing needs to be well seated in the housings. Push those little suckers in as far as you can or you may have some leaks when you turn everything on. Other than that, I say get this system. It will magically transform your cruddy city water into great tasting healthy water right before your eyes!” – Customer Review