Top 10 Best pure blue h20 replacement filters in 2026

Last Updated - 6/27/2026

🏆Best Choice

PUR

PUR Plus Water Filter Replacement for Pitchers & Dispensers, 6-Month Supply, 3 Count, Blue (PPF951K3)

9.8

ChoiceComparer.com Score

9.8

/ 10

Outstanding

Main highlights

•Lead-reducing PUR water filter replacement for pitcher: PUR Plus water filtration pitcher filters are WQA certified to reduce lead & other harmful chemical & physical substances that could be in your water***
•Long lasting 6-Month value: Each PUR filter replacement for water pitchers & dispensers is engineered for up to 40 gallons of cleaner water filtration or 2-months of regular use
•3-in-1 water filtration: enjoy better tasting water with PUR replacement water filters; PUR Plus filters are NSF certified to reduce microplastics, chlorine, and other chemical & physical substances that cause bad taste and odor in your water
•Easy to Install: PUR's LockFit design lets you quickly and easily lock your PUR Plus water filter replacement cartridge into your PUR Plus pitcher and dispenser system and prevent unfiltered water from mixing with filtered water
•A PUR Plus water filter cartridge replacement can help you save up to $75 per month compared to bottled water**

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$22.99

$26.99

-15%

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Culligan

Culligan RC-EZ-3 Easy Change Advanced Water Filtration Replacement Cartridge, 500 Gallons, (Pack of 1)

9.7

ChoiceComparer.com Score

9.7

/ 10

Outstanding

Main highlights

•Provide your family with visibly clean, great-tasting water for drinking and cooking
•FEATURES: Reduces particulates class I, chloride, cyst, turbidity and lindane, atrazine, lead, and bad taste/odor from water; Use under the sink or in the refrigerator; Includes a change reminder sticker
•COMPATIBILITY: Works with Culligan US-EZ-1, US-EZ-3 and US-EZ-4 systems and can replace IC-EZ-3, US-EZ-3 and RV-EZ-3
•FILTER LIFE: Up to 500 gallons or 6 months depending on usage and water conditions
•CERTIFICATION: Tested/certified by IAPMO to NSF/ANSI Standard 42 for the aesthetic reduction of Chlorine Taste and Odor and Nominal Particulate Class 1. Standard 53 for the reduction of Cysts, lead, Turbidity, Lindane and Atrazine

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$29.13

$32.44

-10%

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Brondell

Brondell H2O+ Coral UC300 Three-Stage Undercounter Water Filtration System (UF-35 Replacement Filters)

9.5

ChoiceComparer.com Score

9.5

/ 10

Outstanding

Main highlights

•THREE-STAGE FILTRATION: Brondell’s Coral Three-Stage filter set consists of a sediment filter, pre-carbon filter, and carbon block filter. Get rid of physical, chemical, and biological contaminants in your water while leaving behind beneficial minerals.
•REPLACEMENT WATER FILTER: This sediment and carbon block filter replacement is specifically for the Brondell Coral Under Sink Water Filter (sold separately); It is designed for easy installation, providing great-tasting water for up to 12 Months
•3-STAGE CARBON FILTRATION: The sediment filter reduces rust, sand, and particulates; The carbon pre-filter reduces VOCs, chlorine, and other contaminants; The carbon block filter further decreases chemicals, bad tastes, smells, and heavy metals
•SIMPLE DIY INSTALLATION: The replacement filter can be installed in just a few minutes with a quick and easy twist and seal installation; The change indicator lets you know when a new filter is needed; Includes filter indicator replacement battery

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$79.99

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Watts Premier

Watts Premier 1R-1Y-1B-1G RO-Pure Push Button Replacement Filter Kit

9.4

ChoiceComparer.com Score

9.4

/ 10

Excellent

Main highlights

•COMPREHENSIVE FILTER REPLACEMENT KIT: Say goodbye to unpleasant tastes and odors with the Watts Premier RO Pure 4-Pack Filter Kit, a complete set of water filters for your under sink RO Pure (WP531411, WP531407) or Zero/Pure Plus (WP531517, WP531417). The included 3 filters and membrane are tailored for specific filtration purposes, collectively ensuring crystal clear, great-tasting drinking water every time. Please note this kit will not fit the Watts 1/4 Turn Kwik-Change RO System.
•HIGHLY EFFECTIVE FILTRATION: This kit includes one 5-Micron Sediment Filter (WP105311) for reducing dirt, silt, and rust that affects the taste and appearance of your water; one 5-Micron Activated Carbon Pre-Filter (WP105351) and one Post-Filter (WP105341) for conditioning the water and reducing chlorine taste and odors; one 50 GDP Membrane (WP105331) for reducing TDS and contaminants like arsenic, lead, nitrates, percolate, and copper.
•SMART DESIGN: Each of these four top-performing 11-inch filters is denoted by a different color for easy identification: red for sediment, yellow for pre-filter, blue for post-filter, and green for membrane. They also feature a push button release that allows for hassle-free replacement without shutting off the water source. Easily change out filters with a quick push of a button - no special tools required!
•QUALITY CONSTRUCTION: These durable filters are crafted from high-quality materials for maximum filtration. Filter life may vary based upon local water conditions or use patterns, but we recommend replacing sediment and carbon pre-filters every 6 months, the carbon post-filter once a year, and the membrane every 2 to 5 years.
•THE PREMIER DIFFERENCE: Since our founding in 1989, Premier has been dedicated to the design, development, and marketing of high-quality water filtration systems that exceed industry standards. Following our Watts Water Technologies in 2001, our audience and influence have only expanded, solidifying Watts Premier as a trusted leader in the industry.

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$88.79

$110.99

-20%

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EXPRESS WATER

Express Water – 3 Year Reverse Osmosis System Replacement Filter Set – 23 Water Filters with 50 GPD RO Membrane, Carbon GAC, ACB, PAC Filters, Sediment SED Filters – 10 inch Size

9.2

ChoiceComparer.com Score

9.2

/ 10

Excellent

Main highlights

•Reverse Osmosis Replacement Water Filters: Experience what water should taste like with the Express Water reverse osmosis water filtration system reducing up to 99.99% impurities.
•Water Purification System: Drink the healthiest water on Earth. All water filters are specially engineered to work together, producing the safest and best tasting water you’ll ever drink.
•Reverse Osmosis Filter Replacement Set: Each Express Water replacement filter is specially designed to work together and compliment each other. Get the cleanest water and the best value in your filtration
•Reverse Osmosis Membrane: The RO Membrane is specially designed with density graded layers of filtration to filter the hardest to remove impurities like dissolved solids, microplastics, fluoride, Heavy Metals, and more.
•Pre-Carbon Filter: Activated Carbon Block and Granular Activated Carbon block water filters protect your system from chlorine damage and reduce VOCs.

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$109.99

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Watts Premier

Watts Premier RO Pure Plus 4-Pack Filtration Kit for 4 Stage Pure Plus/Zero Pure Plus Reverse Osmosis System, Push Button Water Filter Replacement, Sediment Filter, Carbon Pre-Filter, VOC, Membrane

9.1

ChoiceComparer.com Score

9.1

/ 10

Excellent

Main highlights

•COMPREHENSIVE VOC FILTER REPLACEMENT KIT: Say goodbye to unpleasant tastes and odors with the Watts Premier RO Pure Plus VOC 4-Pack Filter Kit, a complete set of water filters for your under sink RO Pure (WP531411, WP531407) or Zero/Pure Plus (WP531517, WP531417). The included 3 filters and membrane are tailored for specific filtration purposes, collectively ensuring crystal clear, great-tasting drinking water every time. This kit will not fit the Watts 1/4 Turn Kwik-Change RO System.
•HIGHLY EFFECTIVE FILTRATION: This kit includes one 5-Micron Sediment Filter (WP105311) for reducing dirt, silt, and rust that affects the taste and appearance of your water; one 5-Micron Activated Carbon Pre-Filter (WP105351) for reducing chlorine taste and odors; one 1-Micron VOC (Volatile Organic Compound) Filter (WP105381) for removing herbicides and pesticides; one 50 GDP Membrane (WP105331) for reducing contaminants like arsenic, lead, nitrates, percolate, copper, and dissolved solids.
•SMART DESIGN: Each of these four top-performing 11-inch filters is denoted by a different color for easy identification: red for sediment, yellow for pre-filter, silver for VOC, and green for membrane. They also feature a push button release that allows for hassle-free replacement without shutting off the water source. Easily change out filters with a quick push of a button - no special tools required!
•QUALITY CONSTRUCTION: These durable filters are crafted from high-quality materials for maximum filtration. Filter life may vary based upon local water conditions or use patterns, but we recommend replacing sediment and carbon pre-filters every 6 months, the VOC filter once a year, and the membrane every 2 to 5 years.
•THE PREMIER DIFFERENCE: Since our founding in 1989, Premier has been dedicated to the design, development, and marketing of high-quality water filtration systems that exceed industry standards. Following our Watts Water Technologies in 2001, our audience and influence have only expanded, solidifying Watts Premier as a trusted leader in the industry.

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$107.56

$119.89

-10%

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Cat H2O

Cat H2O & Dog H20 3 Piece Replacement Filter Pads

8.9

ChoiceComparer.com Score

8.9

/ 10

Great

Main highlights

•Includes 3 months worth of filter pads (3pcs-pack)
•Each filter pad includes sponge & activated carbon
•Recommend to change monthly
•Encourages your pet to drink more water
•Replacement filter pads for Cat H2O & Dog H2O

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$14.92

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Paragon Water Systems

PureBlue TLR04RC-5PK Twist Lock Replacement Filter Pack for 4-Stage Reverse Osmosis

8.8

ChoiceComparer.com Score

8.8

/ 10

Great

Main highlights

•Quarter Turn For Easy And Sanitary Filter Changes
•Reduces 97% Of Total Dissolved Solids As Small As 0.01 Microns
•Improves Taste And Clarity
•Brand Name: Paragon Water Systems

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$79.88

$84.99

-6%

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Pelicori

Pelicori H2O Stage 3 Membrane Replacement Filter, Compatible with Pure Blue H2O 4 Stage Reverse Osmosis Water Filtration System (1 Pack)

8.6

ChoiceComparer.com Score

8.6

/ 10

Good

Main highlights

•Compatible Models: This Stage 3 Membrane Filter is designed to fit your Pure Blue H2O 4-Stage Reverse Osmosis Water Filtration System, ensuring a secure fit for reliable use.
•Trusted Certification: The PC-11 reverse osmosis system filter has undergone testing and certification by an independent third-party laboratory, with verified test data demonstrating its ability to reduce chlorine levels.
•High-Quality Filtration: Featuring reverse osmosis technology, these filters are designed to help reduce total dissolved solids and common tap water contaminants to improve your water taste as 1/10,000 micron precision.
•Easy to Install: It only takes a twist to replace the filter for the Pure blue H2O reverse osmosis system in three seconds with no tools required.
•Extended Filter Longevity: The Level 3 membrane filter treats up to 50 gallons daily, with 2-5 years of use possible, which may vary according to local water quality.

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$76.99

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Watts Premier

Watts Premier Annual RO Pure 6-Pack Filtration Kit for Zero/Pure Plus Reverse Osmosis System, Push Button Water Filter Replacement, 2 Sediment Filters, 2 Carbon Pre-Filters, 1 Post-Filter, Membrane

8.5

ChoiceComparer.com Score

8.5

/ 10

Good

Main highlights

•ANNUAL COMPREHENSIVE FILTER REPLACEMENT KIT: Say goodbye to unpleasant tastes and odors with the Watts Premier Annual RO Pure 6-Pack Filter Kit, a one-year supply of water filters for your under sink RO Pure (WP531411, WP531407) or Zero/Pure Plus (WP531517, WP531417). The included 3 filters and membrane are tailored for specific filtration purposes, collectively ensuring crystal clear, great-tasting drinking water every time. This kit will not fit the Watts 1/4 Turn Kwik-Change RO System.
•HIGHLY EFFECTIVE FILTRATION: This kit includes two 5-Micron Sediment Filters (WP105311) for reducing dirt, silt, and rust that affects the taste and appearance of your water; two 5-Micron Activated Carbon Pre-Filters (WP105351) and one Post-Filter (WP105341) for conditioning the water and reducing chlorine taste and odors; one 50 GDP Membrane (WP105331) for reducing TDS and contaminants like arsenic, lead, nitrates, percolate, and copper.
•SMART DESIGN: Each of these four top-performing 11-inch filters is denoted by a different color for easy identification: red for sediment, yellow for pre-filter, blue for post-filter, and green for membrane. They also feature a push button release that allows for hassle-free replacement without shutting off the water source. Easily change out filters with a quick push of a button - no special tools required!
•QUALITY CONSTRUCTION: These durable filters are crafted from high-quality materials for maximum filtration. Filter life may vary based upon local water conditions or use patterns, but we recommend replacing sediment and carbon pre-filters every 6 months, the carbon post-filter once a year, and the membrane every 2 to 5 years.
•THE PREMIER DIFFERENCE: Since our founding in 1989, Premier has been dedicated to the design, development, and marketing of high-quality water filtration systems that exceed industry standards. Following our Watts Water Technologies in 2001, our audience and influence have only expanded, solidifying Watts Premier as a trusted leader in the industry.

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$158.51

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