Water Filters
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5-Stage Reverse Osmosis Filter Pack with Remineralization Filter | FP5PH
5-Stage Reverse Osmosis Filter Pack With Remineralization Filter | FP6 Includes (1) 5 Micron Pre-Filter - US Water (1) Carbon Block Pre-Filters - US Water (1) Remineralization Cartridge - US Water (1) 1/4" NPT In-Line GAC Post-Filter - US Water (1) Silicone Packet Detailed...-
$91.59 - $54.95
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US Water Interceptor Pre-Filter | Up to 25 GPM
US Water Electro-Absorptive Nanofiber Filter Uses Mechanical Filtration And Electro-Adhesion Utilizing Cutting-Edge Technology The US Water Interceptor Pre-Filter has a 5 micron outer filter layer (which can be washed off if sediment accumulated). Inside the filter is another layer of pleated material manufactured of...-
$481.67 - $289.00
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US Water Polyphosphate Filter Cartridge 2.5" x 10" | USWF-2510-PP
US Water 2.5" x 10" Phosphate Cartridge The cartridges contain food grade slow melt polyphosphate that dissolves slowly in water to inhibit scale and rust build-up. This type of treatment is recommended for use with ice machines, coffee and vending machines, food service equipment,...-
$83.25 - $49.95
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5-Stage Reverse Osmosis Filter Pack with Fluoride Filter | FP5F
5-Stage Reverse Osmosis Filter Pack With Fluoride Removal Cartridge Fits Most 5-Stage Reverse Osmosis Systems Fits Most 5-Stage Reverse Osmosis Systems Includes 5 Micron Pre-Filter Carbon Block Pre-Filter Fluoride Removal Filter 1/4" NPT In-line GAC carbon post filter (1) Silicone Packet Detailed Instructions All...-
$116.59 - $69.95
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American Plumber WRO-4500 Reverse Osmosis Filter Pack
Replacement Filter Pack for American Plumber WRO-4500 Reverse Osmosis System All Filters are Made in the USA NSF Certified Includes (1) 5 Micron Pre-Filter (555021-52) (1) Carbon Block Pre-Filter (555021-52) (1) 1/4" NPT In-Line GAC Post-Filter (255521-51) (1) Silicone Packet Membrane Sold Separately It...-
$74.92 - $44.95
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US Water Systems Calcite Replacement Cartridge 4.5" x 10" With Double O-Ring Seal
US Water Systems Big Blue Calcite Replacement Cartridge 4.5" x 10" With Double O-Ring Seal 4.5" x 10" 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,...-
$96.59 - $57.95
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10 GPM Limeblaster Salt-Free Tankless Water Heater Protector – 1" PIPE
The Limeblaster is the new standard in salt-free water conditioning technology designed explicitly for tankless water heaters. It prevents scale formation inside the tankless water heater itself. There is no system that can prevent scale inside your tankless water heater better than...-
$283.25 - $169.95
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PuROLine Reverse Osmosis Filters
PuROLine PL-5000, PL-4000, PL50T50, PL50T75, PL50T100, and PL40T50 Reverse Osmosis Filter Pack The PuROLine is Manufactured by Good Water Warehouse. US Water Systems offers quality USA manufactured compatible filters at a cost savings that will meet or exceed Good Water Warehouse specifications. Replacement Filter...-
$91.59 - $54.95
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Vertex Pure Water Machine PT-4.0/5 Reverse Osmosis Filter Pack FK-101
Replacement Filter Pack for Vertex Pure Water Machine PT-4.0/5 Reverse Osmosis Systems Vertex Water Products is a family owned company since 1998. US Water Systems offers quality USA manufactured compatible filters at a cost savings that will meet or exceed Vertex Water Products specifications....-
$83.25 - $59.95
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Filter Bracket Screws for Commercial 10" & 20" Filter Housings | MS1410
Mounting Bracket Screws for Most Commercial 10" & 20" Filter Housings Set of 4 #14 x 1" Fits most commercial 2.5" x 10" and 2.5" x 20" filter housings Part # MS1410-4-
$3.32 - $1.99
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US Water Systems AR-4 RO Replacement Filter Pack
Replacement Filter Pack for US Water AR-4 Reverse Osmosis SystemsAxeon formal named RO Ultra Tech has been the water treatment marketplace over 30 years.US Water Systems offers quality USA manufactured compatible filters at a cost savings that will meet or exceed Axeon’s specifications. It...-
$108.25 - $64.95
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US Water 2.5" x 20" Commercial Filter Housing With Pressure Relief Clear
US Water 2.5" x 20" Clear Commercial Filter Housing The US Water 2.5” x 20” Cartridge Housing is a Commercial Grade Housing that will handle heavy filtration needs for years. It accepts any industry standard 2.5” x 20” filter cartridge which includes, pleated, melt...-
$88.25 - $52.95
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Clear Refillable Filter Canister 2.5" x 10" | RC-C-975
2.5" X 10" (9.75") Clear Empty Refillable Canister for Granular Media - Ideal for Color-Changing DI Resin Can be used with a wide range of media, including carbon, polyphosphate, calcite, resin and other media. Low cost and reusable. Made with FDA approved food grade...- $9.95
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4-Stage USA Made Quantum Disinfection Reverse Osmosis Filter Pack | FP4S-USA
4-Stage Made in USA Filter Pack With Quantum Disinfection Cartridge Turns Any RO System into a Purifier! Our 4-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...-
$108.25 - $64.95
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High Temperature Filter Housing Kit - 10 Inch | HT10
US Water 2.5" x 10" Hot Water Filter Housing With 5 Micron Hot Water Pleated Filter Cartridge Features Manufactured of glass-reinforced nylon to withstand high temperatures up to 160°F Flows up to 10 GPM Maximum Pressure is 125 PSI 3/4” Inlet/Out Includes 5 micron...-
$149.92 - $89.95
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AXEON HF4-2521 Reverse Osmosis Membrane
AXEON® HF4–Series Reverse Osmosis Membrane Elements operate at extra-low pressures of only 100 psi, while producing a nominal salt rejection rate of 99% and reaching flow rates up to 2,500 gallons per day. Protected with a hard ABS shell for improved structural integrity, HF4–Series RO Membranes are...-
$203.17 - $121.90
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US Water 4.5 x 20 Chloramine Carbon Block Filter Double O-Ring Seal | USWCB-4520-CL-OR
US Water Systems Chloramine Carbon Block Filter 4.5 Inch x 20 Inch Double O-Ring Seal - 1 Micron Filter Filter elements are designed to fit US Water Systems 20” double o-ring style filter housings. This high quality carbon block media is manufactured from raw...-
$249.92 - $149.95
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4.5 x 10 High Flow Filter Housing Only
US Water Systems 4.5 x 10 High Flow Filter Housing Only| No Cartridges The one thing most filter housings have in common is that that are made in the Far East (usually China). Even the industry standard for Big Blue housings, Pentek is no...-
$124.92 - $74.95
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US Water Interceptor PAC 4.5" x 20" DOE Filter Cartridge
PULSAR 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 sediment...-
$283.25 - $169.95
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Blue 2.5" x 20" Commercial Filter Housing With Pressure Relief
20" Commercial-Grade Single Cartridge Filter Housing - 3/4" Inlet/Outlet - Black Cap and Blue Sump The US Water 2.5” x 20” Cartridge Housing is a Commercial Grade Housing that will handle heavy filtration needs for years. It accepts any industry standard 2.5” x 20”...-
$76.59 - $45.95
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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.