Water Filters
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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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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 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 4.5 x 20 High Flow Filter Housing Kit
US Water Systems 4.5 x 20 High Flow Filter Housing Kit | No CartridgesThe one thing most filter housings have in common is that they are made in the Far East (usually China). Even the industry standard for Big Blue housings, Pentek is no...-
$233.25 - $139.95
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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 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 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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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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Black Single Mounting Bracket for 4.5" Big Blue Filter Housings
Black Single Big Blue Filter Housing Mounting Bracket Heavy-Duty Commercial-Grade Bracket for 4.5" Big Blue Filter Housings Powder-coated steel Fits 4.5" x 10" and 4.5" x 20" Filter Housings 4.5" wide x 9.5" deep x 5.0" high Does Not Include Mounting Screws Fits US...-
$36.65 - $21.99
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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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Filter Bracket Screws for Big Blue 4.5" Housings | FBS-45
Mounting Bracket Screws for Big Blue 4.5" Housings Set of 4 #5/16" x 1" Corrosion Resitant Fits Pentek, Ametek, Watts, Flowmatic, Liquatec, Hydronix, US Water Systems, and most other "Big Blue" style housings Part # MS5161-
$6.49 - $3.89
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US Water 4.5 x 20 Big Clear Commercial Filter Housing
US Water Big Clear 4.5 x 20 Commercial Filter Housing With 1" Inlet/Outlet - Includes Pressure Relief Valve The US Water 4.5” x 20” Big Clear Cartridge Housing is a Commercial Grade Housing that will handle heavy filtration needs for years. It accepts any...-
$338.92 - $203.35
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US Water Systems Maverick R/O Filter Pack
USA-MADE FILTER PACK FOR MAVERICK RO SYSTEMSThis filter pack contains all the filters needed for any of the US Water Systems Maverick-Series Reverse Osmosis Systems, including the following models: 220-MAV-200 220-MAV-350 220-MAV-500 220-MAV-750 It also includes silicone to ensure a proper seal and extend...-
$299.92 - $179.95
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4.5 x 20 Limeblaster Replacement Cartridge | LBC-4520-D
4.5" x 20" US Water Limeblaster Cartridge - DOE 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...-
$66.59 - $39.95
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AXEON XE1-4040 NSF-61 Reverse Osmosis Membrane
AXEON® XE1–Series Membrane Elements offer enhanced performance and extra energy savings for reverse osmosis systems by operating at a low applied pressure of 100 psi with a nominal rejection rate of 99.2%. AXEON XE1–Series are fiberglass wrapped, NSF-61 Certified and manufactured in a state-of-the-art, ISO–9001 compliant automated...-
$466.59 - $279.95
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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 Systems Spun Poly Sediment Filter 4.5" x 20" 1 Micron
US Water Systems Meltblown Spun Poly Sediment Filter - 4.5" x 20" 1 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 Systems Radial Flow Carbon Filter 4.5" x 10" | Double O-Ring Seal
US Water Systems 4.5" x 10" Radial Flow Carbon Filter - Double O-Ring Positive Seal 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...-
$149.92 - $89.95
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We carry replacement water filters for reverse osmosis systems, carbon block water filters, whole house systems, as well as cartridge filters for filter housings from manufactures such as Harmsco. The filters we carry can fill virtually need, or any size. We pride ourselves on customer satisfaction, so unlike other companies, we don't carry ineffective filters manufactured in China.
Replacement Water Filters
Whether you are looking for a replacement cartridge filter or a pleated filter for your home water filtration system, US Water Systems has the replacement water filter that you need. We carry stock in only the highest quality products, and don't sell anything that doesn't meet rigid standards.
Replacement Reverse Osmosis Filters.
Though all reverse osmosis systems are designed to filter water to incredibly pure standards very few companies can provide the amount of replacement reverse osmosis filters that US Water Systems carries. We offer nearly twenty different reverse osmosis brands, and as always, have a low price guarantee on everything we stock.
Why Should I shop US Water Systems for my Water Filters?
We know there is a sizeable amount of competition out there in the water filter business, many of our competitors offer inferior goods manufactured in China. While our competitors might find it convenient to sell lower quality water filters, we choose to sell very best brands from manufactures such as Harmsco. Another great reason to buy all of you water filters from US Water Systems is we have a low price guarantee, if you can find a better price on any of the products we sell we will beat it, no questions asked. We are confident in our ability to provide you the best filters for the lowest price.
US Water Systems Guarantee
We pride ourselves in providing the highest quality replacement filters for your needs at the lowest price, period. If you find a better price (including shipping) on any of the filters we have in stock we will beat it. No other company can offer filters at prices lower than ours, and we prove it every day.