Replacement Filters
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5-Stage USA Made Quantum Disinfection Reverse Osmosis Filter Pack | FP5S-USA
5-Stage Made in USA Filter Pack With Quantum Disinfection Cartridge Turns Any RO System into a Purifier! Our 5-Stage Filter Pack includes silicone to lubricate the O-Rings and the Quantum Disinfection Cartridge so that you can trust your water to be as clean as...-
$158.25 - $94.95
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US Water Systems Spun Poly Sediment Filter 4.5" x 20" 5 Micron
US Water Systems Meltblown Spun Poly Sediment Filter - 4.5" x 20" 5 Micron US Water Systems Dual-Gradient Sediment filter cartridges are robust, high efficiency polypropylene melt blown depth filters with an internal polypropylene core for added strength. These filters utilize a multi-layered construction...-
$58.25 - $34.95
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US Water Interceptor PAC 2.5" x 10" DOE Filter Cartridge
US WATER ELECTRO-ABSORPTIVE NANOFIBER FILTER WITH POWDERED ACTIVATED CARBON AND AGION SILVER This is truly disruptive technology in that it uses electro-adhesion to remove sub-micron particles. The US Water Interceptor Pre-Filter has a 5 micron outer filter layer (which can be washed off if...-
$64.92 - $38.95
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Made in USA 4-Stage Reverse Osmosis Filter Pack
Our 4-Stage Filter Pack includes silicone to lubricate the O-Rings so that you can trust you water to be as clean as it can be. Fits Most Sump-Type Filters Using 2-1/2" x 9.75" (10") Housings, Including the Following Models Watts FMRO4G Watts FMRO4J All...-
$99.92 - $59.95
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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 - $49.95
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US Water Systems Spun Poly Sediment Filter 2.5" x 20" 5 Micron
US Water Systems Meltblown Spun Poly Sediment Filter - 2.5" x 20" 5 Micron US Water Systems Dual-Gradient Sediment filter cartridges are robust, high efficiency polypropylene melt blown depth filters with an internal polypropylene core for added strength. These filters utilize a multi-layered construction...-
$21.59 - $12.95
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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 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 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 At US Water Systems, we understand that the basic crux of our being is water. We know that water is life and strive to evolve the traditional health model into a...-
$249.92 - $149.95
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6-Stage Aquapurion Filter Pack with Remineralization
6-Stage Reverse Osmosis Filter Pack With Remineralization Filter | FP6 Includes (1) 5 Micron Pre-Filter - US Water (2) Carbon Block Pre-Filters - US Water (1) Remineralization Cartridge - Hydronix (1) In-Line GAC Post-Filter - US Water (1) Silicone Packet Detailed Instructions On-Line Video...-
$133.25 - $79.95
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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 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 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 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 Residential Membrane 25 GPD
US Water 25 Gallon Per Day Premium Reverse Osmosis TFC Membrane11.75" x 1.75" 25 GPD Standard Size RO MembraneWorks up to 25% longer than standard membranes with better rejection. Axeon has been making membranes for over twenty years and with their advanced thim film...-
$83.25 - $49.95
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US Water Systems Radial Flow Carbon Filter 4.5" x 10" | RFC-BB-10
US Water Systems 4.5" x 10" Radial Flow Carbon Filter - Now Made in America The US Water Radial Flow Carbon Cartridge is a uniquely designed granular activated (GAC) carbon cartridge with an outside poly shell and an inner core which holds the GAC...-
$133.25 - $79.95
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Waterlogix Residential Reverse Osmosis Membrane - 100 GPD
The Highest Quality Membranes in the Industry - Replaces FILMTEC, DESAL, WATTS and Most Other Brand Membranes. This is a Thin-Film Composite Membrane Using the Latest Thin Film Technology with 95-99% Rejection when new. At US WATER, we believe this is the best 100...-
$58.33 - $35.00
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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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Hydronix Inline Remineralization Cartridge
Hydronix In-line Remineralization Cartridge Raises pH of RO Water Compare this to the Aptera Alkamag Alkaline Inline Filter. Leave it to Hydronix Water Technology to take a popular expensive product and make it affordable. Many consumers are using filters to re-mineralize and raise the...-
$104.92 - $62.95
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