Top 10 Best Water Purifiers in 2025 - #1 Top Picks Today

10 Best Water Purifiers of 2025

Find 10 best water purifiers available on the market today. Join the millions of savvy shoppers who trust Greatest.Guide daily for reliable recommendations.

Updated April 15, 2025

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Brita Water Filter Pitcher for Tap and Drinking Water with 1 Standard Filter, Lasts 2 Months, 6-Cup Capacity, BPA Free, White

WATER FILTER PITCHER: One BPA-free, small 6-cup Brita Metro Water Pitcher includes one Standard filter to help remove impurities from your tap water

CUTS OUT IMPURITIES: Brita water filter cuts the taste and odor of chlorine and also reduces copper, cadmium and mercury impurities

SUSTAINABLE: By switching to a Brita water pitcher with filter, you can save money and replace up to 1,800 single-use plastic water bottles a year

EASY TO USE: Easy-fill locking lid on this water pitcher with filter helps prevent unwanted spills and makes pouring and refilling a breeze

REPLACEMENT INDICATOR: Electronic SmartLight filter indicator lets you know when it is time to change your Brita filter

WHAT’S INCLUDED: This water filtration pitcher comes with one water filter, which should be changed every 40 gallons or about every two months for best results

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

6-STAGE ADVANCED FILTRATION WITH UV LIGHT: The Bluevua RO100ROPOT-UV boasts a superior 6-stage filtration system, featuring a 0.0001μm RO membrane, including UV light and an added remineralization filter. Certified by WQA against NSF/ANSI/CAN 372 for lead-free and tested by SGS, this combination effectively reduces TDS, PFOA, PFOS, Chlorine, Fluoride, Arsenic, Lead, and more, while also enriching water with essential minerals, balancing taste and health benefits.

COUNTERTOP FILTRATION + PREMIUM-QUALITY CARAFE: No plumbing or installation is required for this RO system. Simply plug this portable piece of tech into any power source and you're ready to fill it up and go! Better yet, the water container is constructed of a high borosilicate glass carafe instead of the traditional plastic, reducing the risk of secondary pollution and making this one of the best countertop water filter systems.

POWER SAVING + WATER SAVING: The water system automatically enters power-saving standby mode when not in use to reduce power consumption. Filters are also designed to help save water with an impressive 2:1 Pure to Drain ratio. Leftover water from a cycle isn't deemed wastewater so more water is saved to use for various household purposes.

FILTER LIFE MONITOR: The countertop water filters last for a long time between 12-24 months to provide 1-2 years of clean drinking water before needing replacement. Monitor display shows the service life of filters and water quality so you can easily keep track of filter replacement and periodically switch out filter tubes.

SUSTAINABLE HYDRATION: 1-year limited manufacturer warranty included upon registration. Designed with premium quality components for years of reliable use, our RO system delivers bottled-quality water at home, reducing plastic waste and supporting sustainability efforts with ClimatePartner Certification.

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Brita UltraMax Large Water Dispenser With Standard Filter, BPA-Free, Reduces Copper, Cadmium and Mercury Impurities, Lasts 2 Months or 40 Gallons, Includes 1 Filter, Kitchen Accessories, Large 27-Cup

WATER DISPENSER: One BPA-free, large 27-cup Brita UltraMax Filtered Water Dispenser includes one Standard filter to help remove impurities from your tap water

CUTS OUT IMPURITIES: Brita water purifier dispenser cuts the taste and odor of chlorine and also reduces copper, mercury and other impurities

SUSTAINABLE: By switching to a Brita water filter system, you can save money and replace up to 1,800 single-use plastic water bottles a year

FRIDGE-FRIENDLY: Space-efficient Brita water dispenser is fridge-friendly, and it features an easy-locking lid and precision-pour spigot

REPLACEMENT INDICATOR: Sticker filter indicator lets you know when it is time to change your Brita filter

WHAT’S INCLUDED: This water dispenser comes with one Standard water filter, which should be changed every 40 gallons or about every two months for best results

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LifeStraw Personal Water Filter for Hiking, Camping, Travel, and Emergency Preparedness, 1 Pack, Blue

Removes Bacteria & Parasites: The Microfiltration Membrane Removes 99.999999% Of Waterborne Bacteria (Including E. Coli And Salmonella), And 99.999% Of Waterborne Parasites (Including Giardia And Cryptosporidium)

Removes Microplastics: Removes The Smallest Microplastics Found In The Environment (Down To 1 Micron), And Reduces Turbidity Down To 0.2 Microns

Rigorous Testing: All Claims Are Verified With Laboratories Using Standard Testing Protocols Set By The Us Epa, Nsf, Astm For Water Purifiers

Long Lifetime: The Microbiological Filter Will Provide 4,000 Liters (1,000 Gallons) Of Clean And Safe Drinking Water With Proper Use And Maintenance

Make An Impact: For Every Lifestraw Product Purchased, A School Child In Need Receives Safe Drinking Water For An Entire School Year.Bpa Free Materials

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ZeroWater 32-Cup Ready-Read 5-Stage Water Filter Pitcher Dispenser with 5-Stage 0 TDS Zero Water Filter – IAPMO Certified to Reduce Metals, Chlorine, Lead, Chromium, and Forever Chemicals PFOA/PFOS

Filtered Water Dispenser: The 32 Cup 5-stage Ready-Read Water Filter Dispenser has an integrated TDS Meter to instantly check the levels of dissolved solids before dispensing or pouring water - always know when it is time to change your filter! Change filter when meter reads 006.

5-Stage Filtration: Removes virtually all total dissolved solids (TDS) for the purest tasting water; Total Dissolved Solids are organic and inorganic materials, such as metals, minerals, salts, and ions dissolved in water.

IAPMO certified and BPA free: The filter is IAPMO certified to reduce PFOA/PFOS, lead, chromium and mercury. All material is BPA free

Including: 32-cup Ready-Read Filter Water Dispenser, 1 ZeroWater 5-Stage Filter with Ion Exchange Technology and a Free TDS Meter.

Eco-Friendly: Save up to 110 single-use plastic bottles per filter or up to 660 bottles a year while enjoying the purest tasting

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PUR PLUS Vertical Faucet Mount Water Filtration System with 3-in-1 Lead Reducing Filter for Great-Tasting Filtered Tap Water, Lasts 100 Gallons, Fits Most Kitchen or Bathroom Faucets, Grey

3-IN-1 POWERFUL WATER FILTRATION. PUR is the only faucet filter brand certified by WQA and NSF to reduce 70 chemical & physical substances, including lead. § It is also NSF certified to reduce microplastics that are commonly found in tap water. §

INCLUDES 1 GENUINE PUR PLUS FAUCET MOUNT WATER FILTER THAT IS CERTIFIED to provide cleaner, better-tasting drinking water in your PUR PLUS Faucet Mount Water Filtration System. Other brands are not certified to work w/this PUR Faucet Mount Water Filter.

QUICK, 1-CLICK, TOOL-FREE INSTALLATION with on/off lever for easy, on demand, filtered water.

FILTER CHANGE LIGHT to notify you when it is time to change your filter. The Genuine PUR PLUS Faucet Mount Water Filter with natural mineral filtration is certified to last for up to 100 gallons or for 3 months of regular use.

COMPATIBLE WITH MOST STANDARD FAUCETS WITH VISIBLE, EXTERNAL AERATORS -- so you can enjoy cleaner, mineral water directly from your tap. Not compatible with pull-out faucets or faucets with internal aerators

COST-EFFECTIVE -- The PUR PLUS Faucet Mount Water Filtration System can help you save up to $30 a week.

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ZeroWater 22-Cup Ready-Read 5-Stage Water Filter Pitcher Dispenser with 5-Stage 0 TDS Zero Water Filter – IAPMO Certified to Reduce Metals, Chlorine, Lead, Chromium, and Forever Chemicals PFOA/PFOS

Filtered Water Dispenser: The 22 Cup 5-stage Ready-Read Water Filter Dispenser has an integrated TDS Meter to instantly check the levels of dissolved solids before dispensing or pouring water - always know when it is time to change your filter! Change filter when meter reads 006.

5-Stage Filtration: Removes virtually all total dissolved solids (TDS) for the purest tasting water; Total Dissolved Solids are organic and inorganic materials, such as metals, minerals, salts, and ions dissolved in water.

IAPMO certified and BPA free: The filter is IAPMO certified to reduce PFOA/PFOS, lead, chromium and mercury. All material is BPA free

Including: 22-cup Ready-Read Filter Water Dispenser, 1 ZeroWater 5-Stage Filter with Ion Exchange Technology and a Free TDS Meter.

Eco-Friendly: Save up to 110 single-use plastic bottles per filter or up to 660 bottles a year while enjoying the purest tasting water

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Brita UltraMax Elite Water Filter Dispenser, Removes 99% of Lead, Includes 1 Filter, 27-Cup, Black

WATER DISPENSER: One BPA-free, large 27-cup Brita UltraMax Elite Water Dispenser includes one Elite filter to help remove impurities from your tap water

IMPROVES WATER QUALITY: Brita water purifier dispenser cuts the taste and odor of chlorine from your drinking water

CUTS OUT IMPURITIES: Brita’s 27-cup water filter system helps reduce 30 contaminants, including cadmium, mercury, asbestos, benzene and lead. Reduces 99% of Lead.

SUSTAINABLE: By switching to Brita, you can save money and replace up to 1,800 single-use plastic water bottles a year

FRIDGE-FRIENDLY: Space-efficient Brita water dispenser is fridge-friendly, and it features an easy-locking lid and precision-pour spigot

REPLACEMENT INDICATOR: Electronic filter indicator lets you know when it is time to change your Brita filter

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Membrane Solutions

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Membrane Solutions Portable Water Filter Straw Filtration Straw Purifier Survival Gear for Hiking, Camping, Travel, and Emergency, Blue, 4 pack

Survival Gear for Outdoor Water Needs - SGS certificated, Test Report NBF21-004693-01. If you want to obtain clean drinking water simply and quickly, you can use this survival gear. The portable and lightweight filtering system is ideal for recreation, hiking, camping. It’s also your good companion for scouting, domestic and international travel, and emergency preparedness.

Portable & Long Life-Span - This straw filtration at only 7.1'' long and 1" in diameter fits any 28mm threaded bottle, cup, or glass. It weighs just 2 ounces and fits in the palm of your hand, pocket, gym bag, backpack, survival pack or purse. Both ends of the Upgrade water filter straw are removable for cleaning to extend Longer Lifespan ensuring it provides up to 1,320 gallons (5,000 liters) of drinking water. Don't miss this opportunity to drink clean water conveniently wherever you go.

5-Stage Filtration - Our Upgrade 5-Stage Filtration System includes a coarse filter screen, double layer pp cotton fiber, coconut shell activated carbon and hollow fiber ultrafiltration membranes. which can remove 99.99999% of harmful substances (pollution, odor, chlorine and organic chemicals, etc.) and improve the taste. Ensuring the safest water in the worst environments.(IT DOES NOT LOWER TDS VALUE, ensuring water's essential mineral balance remains untouched.)

Smaller Pore Size - We all know that the smaller the pore size, the higher the filtering accuracy, our pore size is 0.1microns which can filter out 99.99999% of the harmful particles. Compared to the 0.2-micron water purifier straw on the market, Membrane Solutions 0.1 microns pore size water purifier straw maintains the optimum flow rate (16.9 fl oz/min / 500ml/min) and a high filtration accuracy at the same time.

High-Quality Materials & Versatile Filtering Modes - Made of durable food-grade plastics, manufactured with BPA-Free ABS, ensuring safe and quality drinking water. Compared to the big filter straw on the market, Membrane Solutions water filters have a smaller frame, more convenient to use and more filtered modes, ideal for connecting with a soft water pouch or disposable water bottle, even as a replacement gravity filter to get pure water for family & group.

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Potable Aqua Water Purification Tablets with PA Plus, Portable and Effective Solution for Camping, Hiking, Emergencies, Natural Disasters and International Travel, Two 50ct Bottles

One Bottle Of 50 Potable Aqua Water Purification Tablets And One Bottle Of 50 Potable Aqua Pa Plus Tables

Water Purification Tablets Make Questionable Water Bacteriologically Suitable To Drink In Emergency Water Situations

These Water Purification Tablets For Drinking Water Leaves No Iodine Taste Or Color In Your Emergency Water, When Used Correctly.

Portable Water Treatment Tablets Are Effective Against Bacteria And Giardia Lamblia, For Trusted Emergency Water Purification

Water Treatment Tablets Offer Emergency Water Purification For Hiking, Travel, And Natural Disasters, And Ideal To Keep With Camping Accessories

Tetraglycine Hydroperiodide 16.7%.OTHER INGREDIENTS 83.3%

Disclaimer: While we strive for accuracy, we cannot guarantee that all product features listed are complete or error-free. Please confirm the details with the retailer before making a purchase.

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Our #1 Pick

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Brita Water Filter Pitcher for Tap and Drinking Water with 1 Standard Filter, Lasts 2 Months, 6-Cup Capacity, BPA Free, White

WATER FILTER PITCHER: One BPA-free, small 6-cup Brita Metro Water Pitcher includes one Standard filter to help remove impurities from your tap water

CUTS OUT IMPURITIES: Brita water filter cuts the taste and odor of chlorine and also reduces copper, cadmium and mercury impurities

SUSTAINABLE: By switching to a Brita water pitcher with filter, you can save money and replace up to 1,800 single-use plastic water bottles a year

EASY TO USE: Easy-fill locking lid on this water pitcher with filter helps prevent unwanted spills and makes pouring and refilling a breeze

REPLACEMENT INDICATOR: Electronic SmartLight filter indicator lets you know when it is time to change your Brita filter

WHAT’S INCLUDED: This water filtration pitcher comes with one water filter, which should be changed every 40 gallons or about every two months for best results

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