Water Filters
-
5-Stage USA Made Nitrate Reverse Osmosis Filter Pack | FP5N-USA
Our 5-Stage Filter Pack includes silicone to ensure a proper seal and extend the life of the o-rings, helping maintain optimal system performance. Fits Most Sump-Type Filters Using 2-1/2"x9.75" (10") Housings, Including the Following Models: Watts FMRO5G Watts FMRO5J Watts Manifold 5-Stage All Flowmatic...- $77.95
$141.87- $77.95
- Unit price
- per
-
US Water Systems Patriot DI Tank Replacement Cartridge
Replacement DI Cartridge For US Water Patriot DI Tank System Specifications Contains 0.5 cubic foot of Mixed Bed Semiconductor grade DI Resin Peak Flow: 5 GPM Recommended Flow: 3 GPM Water Pressure: 25-100 psi Water Temperature: 33-100°F Capacity: 22,367 gallons @ 5 ppm TDS...- $249.95
$454.91- $249.95
- Unit price
- per
-
APEC RO-45, RO-90, RO-Perm, And RO-Pump Reverse Osmosis Filters
APEC Reverse Osmosis Filter Pack US Water Systems offers quality USA manufactured compatible filters at a cost savings that will meet or exceed APEC specifications. Replacement Filter Pack for APEC RO-45, RO-90, RO-Perm, and RO-Pump 5-Stage Reverse Osmosis System like the one pictured to...- $59.95
$90.91- $59.95
- Unit price
- per
-
Vertex Pure Water Machine PT-4.0 Reverse Osmosis Filter Pack - FK-100
Replacement Filter Pack for Vertex Pure Water Machine PT-4.0 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....- $39.95
$72.71- $39.95
- Unit price
- per
-
AXEON HF5-4040 Reverse Osmosis Membrane
AXEON® HF5–Series Membrane Elements are manufactured using the industry’s leading membrane film technology. These membranes offer reliability, high performance and deliver consistent results. They provide increased production, high rejection rates and ultra low energy consumption by operating at low applied pressures.AXEON HF5–Series Membrane Elements are the...- $332.75
$415.94- $332.75
- Unit price
- per
-
US Water Systems Spun Poly Sediment Filter 2.5" x 10" 20 Micron
US Water Systems Meltblown Spun Poly Sediment Filter - 2.5" x 10" 20 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...- $6.95
$12.65- $6.95
- Unit price
- per
-
Topway Global TGI-WIN-545P Reverse Osmosis Filter Pack | 201-FP5-2
Replacement Filter Pack for TGI Pure Model TGI-WIN-445 4-Stage Reverse Osmosis System Topway Global, established in 1993, manufactured a wide variety of water softeners, point-of-entry filter units and point-of-use drinking water systems for residential, commercial, and industrial applications. In 2007 Watts Water Technologies acquired...- $59.95
$90.91- $59.95
- Unit price
- per
-
US Water 2.5" x 9.75" Pleated Filter Cartridge 10 Micron
2.5" x 9.75" 10 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...- $12.95
$21.59- $12.95
- Unit price
- per
-
Magna 4.5 x 10 Dual High Flow Filter System
Magna 4.5 x 10 Dual High Flow Filter SystemThe 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 longer made in the USA....- From $309.95
$564.11- From $309.95
- Unit price
- per
-
5-Stage USA Made Chloramine Reverse Osmosis Filter Pack | FP5C-USA
Our 5-Stage Filter Pack includes silicone to ensure a proper seal and extend the life of the o-rings, helping maintain optimal system performance. All Filters are NSF Certified for High Purity Reverse Osmosis Systems and are Made in the U.S.A. Includes (1) 5 Micron...- $54.95
$100.01- $54.95
- Unit price
- per
-
Black/Clear 2.5" x 10" US Water Filter Housing
10" Commercial-Grade Single Cartridge Filter Housing - 3/4" Inlet/Outlet -Black Cap andClear Sump The US Water 2.5” x 10” Cartridge Housing is a Commercial Grade Housing that will handle heavy filtration needs for years. It accepts any industry standard 2.5” x 10” filter cartridge...- $34.95
$43.69- $34.95
- Unit price
- per
-
20 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 in larger custom or estate-type homes. It prevents scale formation inside the tankless water heater itself. There is no system that can prevent scale inside...- $199.95
$363.91- $199.95
- Unit price
- per
-
US Water Systems Galaxy2 5-Stage Filter Pack With Quantum Disinfection
US Water Galaxy 5-Stage Filter Pack This is a direct replacement for the US Water Galaxy 5-Stage reverse osmosis system with Quantum Disinfection. We recommend changing out your filters every 6-12 months and the membrane every 3-5 years. If you have adequate pre-filtration, such...- $74.95
$136.41- $74.95
- Unit price
- per
-
Topway Global TGI-525 5-Stage Reverse Osmosis Filter Pack
Replacement Filter Pack for TGI Pure Model TGI-525 or Watts W-525 Reverse Osmosis System Topway Global, established in 1993, manufactured a wide variety of water softeners, point-of-entry filter units and point-of-use drinking water systems for residential, commercial, and industrial applications. In 2007 Watts Water...- $59.95
$90.91- $59.95
- Unit price
- per
-
H2000 And H2500 Reverse Osmosis Filter Pack
Replacement Filter Pack for 3-Stage Reverse Osmosis System US Water Systems offers quality USA manufactured compatible filters All Filters are Made in the USA NSF Certified Replacements Includes (1) 5 Micron Pre-Filter (1) Carbon Block Pre-Filter Silicone Packet Membrane Sold Separately It is recommended...- $29.95
$54.51- $29.95
- Unit price
- per
-
US Water Big Blue Polyphosphate Filter Cartridge 4.5" x 20" | USWF-4520-PP
US Water 4.5" x 20" 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,...- $92.95
$169.17- $92.95
- Unit price
- per
-
US Water Disruptor 4.5" x 20" DOE Filter Cartridge
US Water brings the latest in “Disruptive Technology” with our new US Water Disruptor Filter for Problem Water Applications, such as Tannin, Heavy Metals, Organics, Silica and fine Collodial Particles Charged Zeta Filtration or CZF is manufactured with Nano Alumina Fibers that have a...- $225.95
$376.59- $225.95
- Unit price
- per
-
US Water Calcite Replacement Cartridge 2.5" x 20" | USWF-2520-PH
2.5" x 20" Calcite cartridge to neutralize acidic water, reduce leaching of metal plumbing components, and for use post RO to raise TDS. Capacity: 10,000 Gallons Flow Rate: 2.0 GPM- $25.95
$47.23- $25.95
- Unit price
- per
-
US Water Systems Spun Poly Sediment Filter 4.5" x 20" 20 Micron
US Water Systems Meltblown Spun Poly Sediment Filter - 4.5" x 20" 20 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...- $34.95
$63.61- $34.95
- Unit price
- per
-
US Water 2.5" x 20" Pleated Filter Cartridge 0.5 Micron
2.5" x 20" 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...- $24.95
$41.59- $24.95
- Unit price
- per

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.





