The Best Under-Sink Water Filters for Clean Water from the Tap

under sink water filter
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There’s nothing more refreshing than a cold glass of water after a long day or a tough workout. But if the water coming out of your tap tastes a little less than fresh, you may want to invest in a water filter. There are a few different options out there, including filtering pitchers that you keep in your fridge, as well as larger countertop dispensers from brands like Brita and Pur. But keeping those filled can be a little tedious, especially if you drink a lot of water in a day. That’s why one of the best options is an under-sink water filter.

Setting up an under-sink water filter requires a little time and skill. You’ll need tools like wrenches, screwdrivers and Teflon tape, as well as enough patience to follow the instruction manual. But after the initial hassle of setting up the under-sink filter, you’ll enjoy the benefits of a continuous supply of clean, good-tasting water that flows right from the tap.

The kind of filter you choose will depend on your needs — if your city has a clean water supply but you just don’t like the taste, you can make do with a simple single-stage water filtration system. A single-stage system is easier to set up and less expensive. If you’re worried about heavier contaminants, then you may want a more advanced system, such as a dual-stage or a three-stage system.

We’ve rounded up some of the best under-sink water filtration systems, taking into account contaminants removed, cost, and ease of installation and filter replacement. These are the under-sink water filters to buy right now.


1. Waterdrop 10UA Under-Sink Water Filter System

This option from Waterdrop connects directly to your kitchen faucet for easier installation. It can last up to a whole year before needing to be changed, and it’s designed to maintain a fast water flow. It’s not as advanced a filter as some other options, so it’s best suited for reducing chlorine and improving flavor, rather than filtering out heavy contaminants like lead.

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2. Aquasana 3-Stage Under-Sink Water Filtration System with Faucet

If you’re looking to install a whole new sink system, then consider this option from Aquasana. It includes a three-stage under-sink filter as well as a faucet. You can choose between chrome, brushed nickel or bronze faucets. The filter targets 77 different contaminants, removing up to 99% of them. That includes lead, mercury and pesticides. The filtration system produces audible alerts when it’s time to change the filter.

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3. Brondell Coral Under-Sink Water Filtration System

If you want an advanced system, consider this under-sink water filter from Brondell, which features three-stage filtration for more effective sediment and contaminant removal. It’s designed to have an over 99% reduction in lead. Plus, the larger filters can be used for up to a year. A chrome faucet is included in the kit.

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4. PUR Water Filtration System

This option comes from PUR, best known for their faucet attachment filters and water pitchers. The brand also makes a great option for under the sink. This is a two-stage system, and it includes a faucet. The first stage features a five-micron sediment filter, while the second stage has a five-micron carbon block filter to reduce pollutants.

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5. APEC Water Single-stage Under-Sink Water Filtration System

This system from APEC is a good option if you’re looking for a simple and economical single-stage water filter. It’s designed to remove lead, heavy metals and chlorine, making for healthier water that’s also better-tasting. This is designed as an option for your existing tap, making it a convenient option.

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6. Culligan Under-Sink Water Filtration System

This option from Culligan is an affordable pick for anyone looking for a filter to improve the flavor of their drinking water. This kit includes the filtration kit as well as a faucet and drinking spout. The quick-connect fittings are designed to make for easier installation.

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7. Brondell Coral Under-Sink Water Filtration System

This under-sink water filter from Brondell includes a chrome faucet that features an LED indicator to let you know when it’s time to change the filter, about every six months. The filter is meant to be easily replaceable. It’s certified for 59 contaminants.

under sink water filter Image Courtesy of Home Depot