US Water Filters
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US Water 2.5 x 20 Carbon Block Filter | USWCB-2520-10
US Water Carbon Block Filter 2.5 inch x 20 inch - 10 Micron Filter Filter elements are designed to fit most standard 20” filter housings. This high quality carbon block media is manufactured from raw materials to precise specifications entirely in a US manufacturing...-
$33.25 - $19.95
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US Water Calcite Remineralization Cartridge - 2.5" x 9.75" | USWF-2510-PH
US Water Calcite Cartridge to Re-Mineralize Reverse Osmosis Water and Raise pH - 2.5” x 10 The US Water re-mineralization cartridge dissolves calcium carbonate into the water, which adds essential minerals for good taste and health and neutralizes the pH. This filter generally increases...-
$28.25 - $16.95
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US Water 2.5" x 9.75" Pleated Filter Cartridge 5 Micron
2.5" x 9.75" 5 Micron US Water Polypropylene Filter CartridgeFeatures Pleated design for more surface area Bacteria and chemical resistant Cleanable and reusable in most applications and micron sizes Thermally bonded end caps to ensure better sealing Benefits Lower overall operating cost Longer filter...-
$23.25 - $13.95
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US Water Chloramine Carbon Block Filter | USWCB-2510-CL
US Water Chloramine Carbon Block Filter 2.5 inch x 10 inch - 1 Micron Filter Filter elements are designed to fit most standard 10” filter housings. This high quality carbon block media is manufactured from raw materials to precise specifications entirely in a US...-
$58.25 - $34.95
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US Water 4.5" x 9.75" Pleated Filter Cartridge 20 Micron
4.5" x 9.75" 20 Micron US Water Polyester Filter CartridgeFeatures Pleated design for more surface area Bacteria and chemical resistant Cleanable and reusable in most applications and micron sizes Thermally bonded end caps to ensure better sealing Benefits Lower overall operating cost Longer filter...-
$33.25 - $19.95
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US Water DI Resin Cartridge 2.5" x 20" .6 GPM | USWF-2520-MB
Perfect for laboratories, reefkeeping and rinsing or plating operations Deionization cartridges provide solutions for a variety of applications that need the removal of ionic contaminants. Cartridges with mixed bed resins provide better than 16 megohm-cm quality water for ultra pure needs. Features & Benefits...-
$96.59 - $57.95
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Limeblaster 4.5" x 10" Replacement Cartridge | 222 Seal
4.5" x 10" US Water Limeblaster Cartridge - 222 Seal Features Pleated design for more surface area Bacteria and chemical resistant Thermally bonded end caps to ensure better sealing Benefits Completely safe for drinking water Easy to fit and low maintenance No electricity needed...-
$91.59 - $54.95
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US Water Pulsar Quantum Disinfection Cartridge for RO Systems
US Water Pulsar Quantum Disinfection Filter For Reverse Osmosis Systems This is a game changer! This works on any Reverse Osmosis System, as it contains Quantum Disinfection Media which kills all bacteria on contact. Quantum Disinfection Media is a chemical-free, power-free, maintenance-free, and extremely...-
$74.92 - $44.95
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US Water Magna 4.5" x 10" 1 Micron Replacement Cartridge | 222 Seal
4.5" x 10" US Water Magna Cartridge 1 Micron - 222 Seal Features Magna Seal - It has a positive o-ring seal unlike flat top filters Compared to many other pleated filters on the market, it offers significantly more filtration surface area—typically 30-50% more—allowing...-
$83.25 - $49.96
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US Water Big Blue Calcite Replacement Cartridge 4.5" x 20" | USWF-4520-PH
4.5" x 20" Calcite cartridge is used to neutralize acidic water (raising the pH), reducing the leaching of metal plumbing components, and for use post RO to raise TDS, in case the plumbing is copper and leaching of the copper is an issue. Capacity:...-
$116.59 - $69.95
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US Water 4.5" x 20" Pleated Filter Cartridge 50 Micron
4.5" x 20" 50 Micron US Water Polyester Filter CartridgeFeatures Pleated design for more surface area Bacteria and chemical resistant Cleanable and reusable in most applications and micron sizes Thermally bonded end caps to ensure better sealing Benefits Lower overall operating cost Longer filter...-
$41.59 - $24.95
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US Water Systems Livation Hydration In-line Alkaline Filter With 1/4" Quick Connect Fittings
US Water Systems Livation Hydration In-line Alkaline Filter With 1/4" Quick Connect Fittings ⚠️ Replacing an existing Livation filter? If you bought an American Made Reverse Osmosis System before December 2025, you'll need the Livation Retrofit Installation Kit to install this filter. Why: the...-
$249.92 - $149.95
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US Water DI Resin Cartridge 4.5" x 20" Double O-Ring Seal 1.5 GPM | USWF-4520-MB-OR
US Water 1.5 GPM 4.5" x 20" Double O-Ring Seal Replacement Ultra High Purity DI Cartridge For TDS Reduction Perfect for laboratories, reefkeeping and rinsing or plating operations Deionization cartridges provide solutions for a variety of applications that need the removal of ionic contaminants....- $149.95
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US Water 4.5" x 9.75" Pleated Filter Cartridge 1 Micron
4.5" x 9.75" 1 Micron US Water Polyester Filter CartridgeFeatures Pleated design for more surface area Bacteria and chemical resistant Thermally bonded end caps to ensure better sealing Benefits Lower overall operating cost Longer filter runs for fewer change outs Lower initial pressure drops...-
$41.59 - $24.95
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US Water 2.5" x 9.75" Pleated Filter Cartridge 1 Micron
2.5" x 9.75" 1 Micron US Water Polypropylene Filter CartridgeFeatures Pleated design for more surface area Bacteria and chemical resistant Thermally bonded end caps to ensure better sealing Benefits Lower overall operating cost Longer filter runs for fewer change outs Lower initial pressure drops...-
$24.92 - $14.95
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US Water 2.5" x 9.75" Pleated Filter Cartridge 0.5 Micron
2.5" x 9.75" 0.5 Micron US Water Polypropylene Filter CartridgeFeatures Pleated design for more surface area Bacteria and chemical resistant Thermally bonded end caps to ensure better sealing Benefits Lower overall operating cost Longer filter runs for fewer change outs Lower initial pressure drops...-
$41.59 - $24.95
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US Water 2.5" x 20" Pleated Filter Cartridge 5 Micron
2.5" x 20" 5 Micron US Water Polypropylene Filter CartridgeFeatures Pleated design for more surface area Bacteria and chemical resistant Cleanable and reusable in most applications and micron sizes Thermally bonded end caps to ensure better sealing Benefits Lower overall operating cost Longer filter...-
$36.59 - $21.95
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US Water Magna 4.5" x 10" 0.5 Micron Replacement Cartridge | 222 Seal
4.5" x 10" US Water Magna Cartridge 0.5 Micron - 222 Seal Features Magna Seal - It has a positive o-ring seal unlike flat top filters Compared to many other pleated filters on the market, it offers significantly more filtration surface area—typically 30-50% more—allowing...-
$88.25 - $52.95
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US Water Fluoride Reduction Filter Cartridge 2.5" x 10" | USWF-2510-BC
US WATER SYSTEMS FLUORIDE REDUCTION FILTER CARTRIDGE 2.5" X 10" 2.5" x 10" Fluoride Removal (2.5" x 9-3/4")-US Water Systems USWF-2510-BC Fluoride can occur in drinking water naturally as a result of the geological composition of soils and bedrock. Additional fluoride enters drinking...-
$64.92 - $38.95
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US Water Magna 4.5" x 10" 20 Micron Replacement Cartridge | 222 Seal
4.5" x 10" US Water Magna Cartridge 20 Micron - 222 Seal Features Magna Seal - It has a positive o-ring seal unlike flat top filters Compared to many other pleated filters on the market, it offers significantly more filtration surface area—typically 30-50% more—allowing...-
$78.25 - $46.95
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