10 Best NSF Certified Water Filter Picks for Pure Water

Are you looking for the best NSF certified water filter? I can help you discover top pitchers and under-sink systems to get clean water.

Clean water matters a lot. I once switched to an NSF certified filter and tasted the difference right away. My family drinks more water now.

I’ve tested many filters over years. This guide picks the best NSF certified options for you.

Discover top pitchers and under-sink systems. See how they cut lead and chlorine. Read on for your perfect pick.

List of Top 10 NSF Certified Water Filter

Image Title Best For Price
Brita Filter Replacements for Water Pitchers and Dispensers, Elite, NSF Certified to Remove 99% of Lead, 2 Count, Blue Brita Filter Replacements for Water Pitchers and Dispensers, Elite, NSF Certified to Remove 99% of Lead, 2 Count, Blue

Perfect for busy families who want fresh, clean water every day without buying bottled water. It’s also great for eco-friendly folks looking to cut down on plastic waste and save cash.

Waterdrop Water Filter Pitcher with 1 Filter, 200-Gallon Long-Life, 10-Cup Large Water Filter Pitcher, NSF Certified, 5X Times Lifetime, Reduces PFOA/PFOS, Chlorine, White Waterdrop Water Filter Pitcher with 1 Filter, 200-Gallon Long-Life, 10-Cup Large Water Filter Pitcher, NSF Certified, 5X Times Lifetime, Reduces PFOA/PFOS, Chlorine, White

Want clean, great-tasting water without the hassle? This Waterdrop pitcher is perfect for anyone who wants to ditch those expensive water bottles and enjoy pure refreshment at home, in their apartment, or in the kitchen. It’s easy to use and fits right in your fridge!

Waterdrop Water Filter Pitcher, 200-Gallon Long-Life, Countertop NSF Certified Water Purifier, Replaces 6,400 Plastic Water Bottles a Year, Reduces Chlorine, PFOA/PFOS, 7-Cup, Blue Waterdrop Water Filter Pitcher, 200-Gallon Long-Life, Countertop NSF Certified Water Purifier, Replaces 6,400 Plastic Water Bottles a Year, Reduces Chlorine, PFOA/PFOS, 7-Cup, Blue

This pitcher is perfect for people who want to save money on clean water and cut down on plastic bottles. It’s ideal for families with children who need safe drinking water from the tap without much effort.

iSpring RCC7AK, NSF Certified, 75 GPD, Alkaline 6-Stage Reverse Osmosis System, pH+ Remineralization RO Water Filter System Under Sink, Patented Top-Mounted Faucet Design for Easy Installation iSpring RCC7AK, NSF Certified, 75 GPD, Alkaline 6-Stage Reverse Osmosis System, pH+ Remineralization RO Water Filter System Under Sink, Patented Top-Mounted Faucet Design for Easy Installation

This iSpring RCC7AK is perfect for anyone who wants clean water. It is great for people who want easy installation and long-lasting filters.

Waterdrop 10UA Under Sink Water Filter System, Reduces PFAS, PFOA/PFOS, Lead, Chlorine, Bad Taste & Odor, Under Counter Water Filter Direct Connect to Kitchen Faucet, NSF/ANSI 42 Certified, 1 Year Waterdrop 10UA Under Sink Water Filter System, Reduces PFAS, PFOA/PFOS, Lead, Chlorine, Bad Taste & Odor, Under Counter Water Filter Direct Connect to Kitchen Faucet, NSF/ANSI 42 Certified, 1 Year

This under sink water filter is perfect for families and households that want clean, healthy water right from their kitchen faucet. It’s also ideal for people in RVs, offices, or rented homes who need easy setup and long-lasting protection from harmful substances like lead and chlorine.

Bluevua RO100ROPOT-UV Reverse Osmosis System Countertop Water Filter - 6 Stage Purification with UV and Remineralization, Counter RO Filtration, Portable Water Purifier Bluevua RO100ROPOT-UV Reverse Osmosis System Countertop Water Filter – 6 Stage Purification with UV and Remineralization, Counter RO Filtration, Portable Water Purifier

This Bluevua RO100ROPOT-UV water purifier is perfect for families who want clean, healthy water at home without messing with pipes. It’s also great for renters or small spaces where keeping it simple and portable matters most.

Waterdrop Glass Water Filter Pitcher with 1 Filter, Eco-Friendly, with NSF 53&42&372 Certified Filter, 7-Cup, Reduces PFOA/PFOS, Chlorine, Cadmium, Copper, Mercury, BPA Free, Easy to Clean, White Waterdrop Glass Water Filter Pitcher with 1 Filter, Eco-Friendly, with NSF 53&42&372 Certified Filter, 7-Cup, Reduces PFOA/PFOS, Chlorine, Cadmium, Copper, Mercury, BPA Free, Easy to Clean, White

Want cleaner, better-tasting water? This Waterdrop Glass Water Filter Pitcher is perfect for you. It’s great for anyone who wants pure water without the wait.

SimPure Y7P-BW UV Countertop Reverse Osmosis Water Filter, NSF/ANSI 58 Certified, 5 Stage RO Water Filtration System, Water Purifier for Home, 4: 1 Pure to Drain, BPA Free (No Installation Required) SimPure Y7P-BW UV Countertop Reverse Osmosis Water Filter, NSF/ANSI 58 Certified, 5 Stage RO Water Filtration System, Water Purifier for Home, 4: 1 Pure to Drain, BPA Free (No Installation Required)

Tired of complicated water filters? Want pure water without the fuss? The SimPure Y7P is perfect for you. It’s easy to use and needs no tools. Great for apartments, offices, or even RVs.

Under Sink Water Filter for Sink Faucet by CuZn, 5 Year Filtration Life, Reduces PFAs, PFOS, Lead, Chlorine, Improves Taste of Tap Water with NSF/ANSI 42 & 372 Certified High Performance Under Sink Water Filter for Sink Faucet by CuZn, 5 Year Filtration Life, Reduces PFAs, PFOS, Lead, Chlorine, Improves Taste of Tap Water with NSF/ANSI 42 & 372 Certified High Performance

This under-sink water filter is perfect for busy families and health-conscious people who want clean, great-tasting water at home. It’s ideal for renters or anyone who needs an easy way to cut out harmful stuff like lead and chemicals without big changes to their sink.

Purewell 3-Stage 0.01μm Ultra-Filtration Gravity Water Filter System, NSF/ANSI 42&372 Certification, 304 Stainless Steel Countertop System with 2 Filters and Stand, Reduce 99% Chlorine, 2.25G, PW-OB Purewell 3-Stage 0.01μm Ultra-Filtration Gravity Water Filter System, NSF/ANSI 42&372 Certification, 304 Stainless Steel Countertop System with 2 Filters and Stand, Reduce 99% Chlorine, 2.25G, PW-OB

This gravity water filter system is perfect for families who want safe, clean drinking water at home without needing electricity. It’s also great for homeowners seeking a stylish and reliable way to reduce chlorine, rust, and sediment in their water.

Detailed Reviews

Need the best NSF certified water filter? This guide offers expert picks and customer favorites. Find the perfect filter for clean and great-tasting water.

1. Brita Filter Replacements for Water Pitchers and Dispensers, Elite, NSF Certified to Remove 99% of Lead, 2 Count, Blue

Brita Filter Replacements for Water Pitchers and Dispensers, Elite, NSF Certified to Remove 99% of Lead, 2 Count, Blue

Brita Elite filter replacements give you clean, good-tasting water from your pitcher or dispenser. They cut down on waste and help you save cash by skipping plastic bottles.

These filters block 99% of lead and many other bad stuff like chlorine and mercury. They catch more pollutants than usual Brita filters do. They also remove things like asbestos and benzene.

The filters fit all Brita pitchers and dispensers except Stream. They last much longer than many other brands, needing just two changes a year. Use the pull-top cap for fast, easy setup without soaking.

Pros Cons
  • Enjoy cleaner, fresh-tasting water daily.
  • Reduce 99% of lead and harmful substances.
  • Save money by replacing plastic bottles.
  • Lasts 3x longer than top competitors.
  • Easy to install without presoaking.
  • Doesn’t fit Brita Stream pitchers.
  • Must ensure tight seal for best results.
  • Only lasts six months, not forever.

Perfect For:

Perfect for busy families who want fresh, clean water every day without buying bottled water. It’s also great for eco-friendly folks looking to cut down on plastic waste and save cash.

Ready to Purchase?

2. Waterdrop Water Filter Pitcher with 1 Filter, 200-Gallon Long-Life, 10-Cup Large Water Filter Pitcher, NSF Certified, 5X Times Lifetime, Reduces PFOA/PFOS, Chlorine, White

Waterdrop Water Filter Pitcher with 1 Filter, 200-Gallon Long-Life, 10-Cup Large Water Filter Pitcher, NSF Certified, 5X Times Lifetime, Reduces PFOA/PFOS, Chlorine, White

Quench your thirst with clean, pure water! This Waterdrop pitcher makes every sip refreshing. It’s the perfect addition to any home and kitchen.

This pitcher boasts exceptional quality. Its compact size fits neatly in most refrigerators.

Enjoy NSF-certified filtration. It gives you 5x longer lifespan.

Pros Cons
  • Pure water anytime with easy filtration.
  • Hands-free lid keeps dust out.
  • Fits fridges perfectly for cool refreshment.
  • NSF certified to remove contaminants.
  • 200-gallon filter lasts up to 3 months.
  • Does not lower TDS values, limiting total purification.
  • Requires replacement filters, adding extra costs.

Perfect For:

Want clean, great-tasting water without the hassle? This Waterdrop pitcher is perfect for anyone who wants to ditch those expensive water bottles and enjoy pure refreshment at home, in their apartment, or in the kitchen. It’s easy to use and fits right in your fridge!

Ready to Purchase?

3. Waterdrop Water Filter Pitcher, 200-Gallon Long-Life, Countertop NSF Certified Water Purifier, Replaces 6,400 Plastic Water Bottles a Year, Reduces Chlorine, PFOA/PFOS, 7-Cup, Blue

Waterdrop Water Filter Pitcher, 200-Gallon Long-Life, Countertop NSF Certified Water Purifier, Replaces 6,400 Plastic Water Bottles a Year, Reduces Chlorine, PFOA/PFOS, 7-Cup, Blue

Quench your thirst with the Waterdrop Water Filter Pitcher. It offers powerful filtration at a low cost. You can enjoy great-tasting water without spending a lot.

This pitcher lasts for 3 months or 200 gallons. It helps you save 6,400 plastic bottles annually. You’ll love the delicious water it provides.

This pitcher is NSF certified and made with quality materials. It reduces many substances in your water.

Pros Cons
  • Save money with powerful, affordable filtration.
  • Lasts long, up to 200 gallons or 3 months.
  • Removes impurities like chlorine and PFOA/PFOS.
  • Easy to use with a simple life tracker.
  • Comes in colors for style and purity.
  • Countertop space hog – takes up precious kitchen real estate.
  • Plastic build – not as durable as glass alternatives.
  • No TDS reduction – leaves some dissolved solids untouched.

Perfect For:

This pitcher is perfect for people who want to save money on clean water and cut down on plastic bottles. It’s ideal for families with children who need safe drinking water from the tap without much effort.

Ready to Purchase?

4. iSpring RCC7AK, NSF Certified, 75 GPD, Alkaline 6-Stage Reverse Osmosis System, pH+ Remineralization RO Water Filter System Under Sink, Patented Top-Mounted Faucet Design for Easy Installation

iSpring RCC7AK, NSF Certified, 75 GPD, Alkaline 6-Stage Reverse Osmosis System, pH+ Remineralization RO Water Filter System Under Sink, Patented Top-Mounted Faucet Design for Easy Installation

The iSpring RCC7AK is an under-sink water filter system that easily installs from above. Its patented design means no need to crawl under the sink. This makes setup fast and simple.

It removes over 1,000 contaminants, like chlorine and lead. The NSF 58 certification proves it works well for the whole system. You can see the first filter build up dirt with the clear housing.

The system adds essential minerals for healthy water. Plus, you get lifetime support from the team in Atlanta.

Pros Cons
  • Patented top-mounted design for easy above-sink setup.
  • Alkaline remineralization adds healthy minerals and balanced pH.
  • See contaminants in transparent first-stage housing.
  • NSF certified to remove over 1,000 harmful substances.
  • Lifetime support from Atlanta for trustworthy help.
  • Slow water flow limits quick access to purified water.
  • High installation space needed under the sink.
  • Frequent filter changes can raise long-term costs.

Perfect For:

This iSpring RCC7AK is perfect for anyone who wants clean water. It is great for people who want easy installation and long-lasting filters.

Ready to Purchase?

5. Waterdrop 10UA Under Sink Water Filter System, Reduces PFAS, PFOA/PFOS, Lead, Chlorine, Bad Taste & Odor, Under Counter Water Filter Direct Connect to Kitchen Faucet, NSF/ANSI 42 Certified, 1 Year

Waterdrop 10UA Under Sink Water Filter System, Reduces PFAS, PFOA/PFOS, Lead, Chlorine, Bad Taste & Odor, Under Counter Water Filter Direct Connect to Kitchen Faucet, NSF/ANSI 42 Certified, 1 Year

Ready for clean, delicious water? The Waterdrop 10UA Under Sink Water Filter makes it simple.

It’s easy to install and saves you money. Plus, it gets rid of bad stuff like lead and chlorine. You’ll love the fresh, clean taste!

Pros Cons
  • Save money! Replacement filters are super affordable.
  • Get cleaner water with easy, fast install.
  • Long-lasting filter avoids clogging issues.
  • Fits many faucets in homes and offices.
  • Cold water only: Limits hot water use.
  • Short filter lifespan: Lasts just 12 months.
  • Allergy risk: Contains coconut shell material.

Perfect For:

This under sink water filter is perfect for families and households that want clean, healthy water right from their kitchen faucet. It’s also ideal for people in RVs, offices, or rented homes who need easy setup and long-lasting protection from harmful substances like lead and chlorine.

Ready to Purchase?

6. Bluevua RO100ROPOT-UV Reverse Osmosis System Countertop Water Filter – 6 Stage Purification with UV and Remineralization, Counter RO Filtration, Portable Water Purifier

Bluevua RO100ROPOT-UV Reverse Osmosis System Countertop Water Filter - 6 Stage Purification with UV and Remineralization, Counter RO Filtration, Portable Water Purifier

Tired of impure water? The Bluevua RO100ROPOT-UV system is here. Enjoy clean, safe drinking water right from your countertop. It’s that easy.

This system needs no plumbing. Just plug and play.

Drink pure water and help the planet. This system uses less water. It also reduces plastic waste.

Pros Cons
  • Ultra-pure water with 6-stage filtration and UV light!
  • No install needed: It’s ready to use right away.
  • Saves water and energy, good for the planet!
  • Know when to change filters via a simple monitor.
  • Enjoy clean, safe water with a glass carafe.
  • Takes up counter space.
  • Filters cost money to replace.
  • Glass carafe may break easily.

Perfect For:

This Bluevua RO100ROPOT-UV water purifier is perfect for families who want clean, healthy water at home without messing with pipes. It’s also great for renters or small spaces where keeping it simple and portable matters most.

Ready to Purchase?

7. Waterdrop Glass Water Filter Pitcher with 1 Filter, Eco-Friendly, with NSF 53&42&372 Certified Filter, 7-Cup, Reduces PFOA/PFOS, Chlorine, Cadmium, Copper, Mercury, BPA Free, Easy to Clean, White

Waterdrop Glass Water Filter Pitcher with 1 Filter, Eco-Friendly, with NSF 53&42&372 Certified Filter, 7-Cup, Reduces PFOA/PFOS, Chlorine, Cadmium, Copper, Mercury, BPA Free, Easy to Clean, White

Get ready for cleaner, better-tasting water! This Waterdrop glass pitcher makes water filtration simple. It’s the perfect addition to any home.

This eco-friendly pitcher is made of quality glass. It helps reduce plastic waste in your life.

It filters water fast with its great flow rate. Now you can enjoy clean, refreshing water sooner.

Pros Cons
  • Pure glass pitcher is eco-friendly and BPA-free.
  • 5-stage filter cuts harmful stuff from your water.
  • Certified safe by NSF for clean, fresh water.
  • Long-lasting filter works for 100 gallons or 2 months.
  • Fast flow fills a cup in under a minute.
  • Glass pitcher is easy to break if dropped.
  • Inner liner has some plastic despite eco-friendly claim.
  • Filter needs regular replacements every 2 months.

Perfect For:

Want cleaner, better-tasting water? This Waterdrop Glass Water Filter Pitcher is perfect for you. It’s great for anyone who wants pure water without the wait.

Ready to Purchase?

8. SimPure Y7P-BW UV Countertop Reverse Osmosis Water Filter, NSF/ANSI 58 Certified, 5 Stage RO Water Filtration System, Water Purifier for Home, 4: 1 Pure to Drain, BPA Free (No Installation Required)

SimPure Y7P-BW UV Countertop Reverse Osmosis Water Filter, NSF/ANSI 58 Certified, 5 Stage RO Water Filtration System, Water Purifier for Home, 4: 1 Pure to Drain, BPA Free (No Installation Required)

The SimPure Y7P-BW is a top-rated countertop water filter. It uses reverse osmosis and UV light to clean your water. It removes over 99.99% of bad stuff like metals and chemicals.

This filter needs no tools to set up. Just plug it in and drink pure water right away. It works great in homes or small spaces.

It makes 528 gallons of filtered water at a time. It wastes less water than most systems.

Pros Cons
  • Removes 99.99% of 1,000+ contaminants from water.
  • Uses UV and RO for chemical-free pure water.
  • Needs no installation—just plug in and use.
  • Saves up to 1500% more water than other systems.
  • Provides 528 gallons of pure water easily.
  • Bulky design takes up counter space.
  • Only dispenses room-temperature water.
  • Requires electricity to purify water.

Perfect For:

Tired of complicated water filters? Want pure water without the fuss? The SimPure Y7P is perfect for you. It’s easy to use and needs no tools. Great for apartments, offices, or even RVs.

Ready to Purchase?

9. Under Sink Water Filter for Sink Faucet by CuZn, 5 Year Filtration Life, Reduces PFAs, PFOS, Lead, Chlorine, Improves Taste of Tap Water with NSF/ANSI 42 & 372 Certified High Performance

Under Sink Water Filter for Sink Faucet by CuZn, 5 Year Filtration Life, Reduces PFAs, PFOS, Lead, Chlorine, Improves Taste of Tap Water with NSF/ANSI 42 & 372 Certified High Performance

Get ready for clean, crisp water! The Under Sink Water Filter by CuZn is a great choice. It lasts for an amazing 5 years.

This filter uses a 3-stage filtration process. It removes harmful things from your water. The filter is easy to install yourself.

Enjoy better tasting water. This filter is a great value and easy to use.

Pros Cons
  • Unbeatable value: Lasts 5 years saving money.
  • Clean water: Removes impurities without losing minerals.
  • Simple install: No drilling needed, easy DIY.
  • Better taste: Cuts lead and chlorine clearly.
  • Strong support: Quick help if any issues arise.
  • Does not reduce TDS in water.
  • Requires under-sink space for setup.
  • Works only with cold water faucets.

Perfect For:

This under-sink water filter is perfect for busy families and health-conscious people who want clean, great-tasting water at home. It’s ideal for renters or anyone who needs an easy way to cut out harmful stuff like lead and chemicals without big changes to their sink.

Ready to Purchase?

10. Purewell 3-Stage 0.01μm Ultra-Filtration Gravity Water Filter System, NSF/ANSI 42&372 Certification, 304 Stainless Steel Countertop System with 2 Filters and Stand, Reduce 99% Chlorine, 2.25G, PW-OB

Purewell 3-Stage 0.01μm Ultra-Filtration Gravity Water Filter System, NSF/ANSI 42&372 Certification, 304 Stainless Steel Countertop System with 2 Filters and Stand, Reduce 99% Chlorine, 2.25G, PW-OB

Purewell brings you safe, clean water right at home. This 3-stage gravity filter cuts out 99% of chlorine and other bad stuff using top certifications. Enjoy fresh drinking water without fuss.

It uses tiny 0.01μm pores to block 99.99% of tiny junk, way better than most. Plus, it keeps a fast flow at 4 gallons per hour.

Go with 304 stainless steel for a strong, stylish look. It lasts long without power and works inside or out.

Replace filters every 6 months for up to 6,000 gallons of water. Get yours now for pure wellness every day.

Pros Cons
  • Superior Filtration removes 99.99% of tiny contaminants with 0.01μm pores.
  • No Electricity Needed saves energy and works anywhere indoors or out.
  • Sturdy 304 Stainless Steel design adds style and durability to your home.
  • Filters Up To 6,000 Gallons with easy 6-month replacements.
  • Complete Package includes leaks-proof spigot and non-slip stand.
  • Leaks if overfilled.
  • Does not lower TDS value.
  • Needs filter change every six months.

Perfect For:

This gravity water filter system is perfect for families who want safe, clean drinking water at home without needing electricity. It’s also great for homeowners seeking a stylish and reliable way to reduce chlorine, rust, and sediment in their water.

Ready to Purchase?

Buying Guide

Clean water matters. An NSF filter makes a real change.

I tried a new pitcher last summer. The taste was fresh right away. My family drinks more water now.

  • Certification: Look for NSF or ANSI marks. They show the filter works. Choose a label that covers the bad stuff you need.

  • Bad stuff removal: Check what the filter blocks. Lead, chlorine, PFAS are common worries. Pick one that hits the biggest risks in your water.

  • Filter life: Know how many gallons or months a filter lasts. Longer life means fewer changes. It also saves money.

  • Flow speed: Fast flow feels good. Slow flow can be annoying. Pick a speed that fits your daily use.

  • Fit type: Pitcher, faucet, under‑sink, or counter. Choose what fits your kitchen. Easy fit saves time.

  • Cost: Compare the price of the system and the replace cartridges. Low start cost may hide high replace cost. Balance both.

  • Upkeep: Simple cartridge swaps are best. Some filters need tools or drilling. Pick a model you can handle.

  • Capacity: Look at how many gallons per filter. Bigger families need higher capacity. Small filters may run out fast.

  • Taste: Many filters also cut bad taste and smell. Fresh tasting water makes you drink more. Read reviews for taste notes.

  • Green impact: Reusable cartridges or recyclable parts lower waste. Fewer plastic bottles are a plus. Choose a greener option.