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The American-Made 6 Stage Alkaline Reverse Osmosis System by US Water Systems features a storage tank and black cylindrical filters labeled Livation Hydration Technology, offering the benefit of delivering pristine, purified water for your home.
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The American-Made 6 Stage Alkaline Reverse Osmosis System

Experience the American-Made Difference See how our customers are transforming their water quality. Share your American-Made experience with #USWaterSystems! American-Made Quality: Prestine Drinking Water at the Turn of a Tap In a market flooded with cheap imported systems, the American-Made Reverse Osmosis System stands...
From $709.95
$1,155.61
From $709.95
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The Americas Premier Quality Water Test - WaterLogix Basic by US Water Systems Inc features a blue box with a water splash graphic, offering a precision home water test kit ideal for health-conscious homeowners who prioritize clean, safe water.

America's Premier Quality Water Test - WaterLogix Basic

Quality Water Testing The Basic Test utilizes a state-of-the-art water testing lab to cover 53 of the most common contaminants, including a water hardness test among others. If you don't feel 100% confident about your water quality then we always recommend a laboratory water...
$159.00
$159.00
The Matrixx Smart Metered Water Softener by US Water Systems Inc features a tall, cylindrical metal tank beside a rectangular black container with a sloped lid, indicating its role in home water systems. Both items are set against a plain white background.
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Matrixx Smart Metered Water Softener

Experience the Matrixx Difference See how our customers are transforming their water quality. Share your Matrixx experience with #USWaterSystems! Certified Components Prevents Scale & Protects Appliances Improved Hair and Skin Health Brighter and Cleaner Clothes Matrixx Smart Water Softener: The Ultimate Solution for a...
From $1,175.00
$2,158.34
From $1,175.00
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The industrial filtration system includes a black Defender Whole House Reverse Osmosis System control panel and a white tank from US Water Systems Inc., which integrates seamlessly with a commercial pump for efficient performance.
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Defender Whole House Reverse Osmosis System

Key Features & Benefits A Green Solution - Many commercial RO systems are 15% efficient which means they waste six (6) gallons of water for every gallon they make, which's very wasteful and very expensive. Our Defender RO is up to 80% efficient which...
From $8,995.00
$16,658.34
From $8,995.00
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The US Water Systems Bodyguard Whole House Filtration & Green Wave Salt Free Alternative System features three cylinders: two large vertical metal ones flanking a smaller central one, all connected by a top horizontal bracket, including a salt-free water conditioner.
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Bodyguard Whole House Filtration & Green Wave Salt Free Alternative System

BODYGUARD WHOLE HOUSE FILTRATION & GREEN WAVE SALT FREE ALTERNATIVE SYSTEM US Water Systems has combined the benefits of it’s legendary BodyGuard non-electric, no waste, totally-green, whole-house chemical removal system with the cutting-edge technology of the GreenWave salt-free, non-electric, no waste, water conditioner. The...
From $2,174.90
$3,983.34
From $2,174.90
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  • A US Water Softening Resin Cartridge, 2.5 x 9.75, from US Water Systems Inc, designed for hardness reduction with usage instructions and contact info on a yellow label.

    US Water Softening Resin Cartridge 2.5" x 9.75" | USWF-2510-

    2.5" x 9.75" Softening Cartridge For Hardness Reduction Ideal Cartridge to Install Pre-RO to Lower Hardness 1,100 Grains Capacity 1 GPM Design flow rate Fits Most 2.5” x 9.75” Filter Housings Temperature Range - 40°F (5°C) to 100°F (38°C) Pressure Range - 20 PSI...
    $19.95
    $36.31
    $19.95
  • The Big Blue White Refillable Filter Canister 4.5 x 10 by US Water Systems Inc is a plain white cylindrical plastic container with a screw-on lid, ideal for storing anything from granular media to larger items.

    Big Blue White Refillable Filter Canister 4.5" x 10" | RC-W-BB-975

    4.5" X 9.75" (10") Big Blue White Empty Refillable Canister for Granular Media 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 polypropylene. Includes foam pad....
    $11.95
    $21.75
    $11.95
  • The Flexeon LT 200 & 300 20 Filter Pack by US Water Systems Inc includes three Made in America filters: two grey with mesh texture and one white with a smooth surface, ensuring premium USA quality as replacement filters for LT 200 & LT 300 systems.

    Flexeon LT 200 & 300 20" Filter Pack

    Replacement Filter Pack For Flexeon LT 200 & LT 300 Systems With 20" Filters | Made In USAAxeon 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...
    $64.95
    $118.21
    $64.95
  • The US Water Systems Inc White Double Mounting Bracket FM-30W is a white metal wall bracket with multiple holes and slots, designed to mount 10 & 20 Slimline Filter Housings as a Flowmatic Direct Replacement.

    White Double Mounting Bracket For 10" & 20" Slimline Filter Housings | FM-30W

    White Double Mounting Bracket For 10" & 20" Slimline Filter Housings | FM-30W Heavy-Duty Commercial-Grade Bracket Fits Hydronix HF2 & HF3 Housings Direct Replacement for Flowmatic (Watts) 4200 & 7000 Series brackets Fits All 10" & 20" Slimline Flowmatic, Pentek, Watts, Liquatec, Hydronix and...
    $9.98
    $12.48
    $9.98
  • Blue 2.5" x 20" Commercial Filter Housing With Pressure Relief

    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”...
    $45.95
    $57.44
    $45.95
  • The AXEON HF4-2521 Reverse Osmosis Membrane by US Water Systems Inc is a long, cylindrical white cartridge with black ends and a nozzle, offering high flow capacities for efficient water purification.

    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...
    $121.90
    $152.38
    $121.90
  • Hydronix 4.5" x 10" Sediment Depth Filter Cartridge | SDC-45-1050

    Hydronix 4.5" x 10" Sediment Depth Filter Cartridge | SDC-45-1050

    SDCSERIES - 4.5" x 10" (9-7/8") Graded-Density Sediment Depth Filter - SDC-45-1050 Manufactured from 100% Pure Polypropylene Graded density for higher dirt holding capacity 50 Micron Nominal Filtration Buy in Bulk: 12 per box HYDRONIXSDC SERIES SEDIMENT DEPTH CARTRIDGES These 4.5" x 10" (9-7/8")...
    $10.88
    $19.80
    $10.88
  • The White 2.5 x 20 Commercial Filter Housing by US Water Systems Inc is crafted from NSF-listed polypropylene, with vertical ridges and a hexagonal top, efficiently fitting a 2.5 x 20 filter cartridge.

    White 2.5" x 20" Commercial Filter Housing

    20" Commercial-Grade Single Cartridge Filter Housing - 3/8" Inlet/Outlet - White Cap and White Sump This commercial2.5” x 20” Whilte Filter Housing will handle heavy filtration needs for years. It accepts any industry standard 2.5” x 20” filter cartridge which includes, pleated, melt blown,...
    $45.95
    $57.44
    $45.95
  • The US Water Systems Inc 4-Stage Reverse Osmosis Filter Pack, designed for most sump-type RO systems at 20, includes three cartridges and NSF Certified Sani-System sanitizer, all set against a pristine white background.

    4-Stage Reverse Osmosis Filter Pack Fits Most Sump-Type RO Systems - 20"

    US Water 4-Stage Permeate Pump Reverse Osmosis Filter Pack For Systems With 20" Filters All Filters are NSF Certified for High Purity Reverse Osmosis Systems Includes: (1) 5 Micron Pre-Filter (2) Carbon Block Pre-Filters Membrane Sold Separately It is recommended that filters be changed...
    $54.95
    $100.01
    $54.95
  • The US Water Nitrate Removal Filter Cartridge (4.5 x 20) by US Water Systems Inc. is a blue cylindrical cartridge for Big Blue Housing, featuring an instruction label and efficient nitrate removal with Anion Resin technology.

    US Water Nitrate Removal Filter Cartridge 4.5" x 20" | USWF-4520-NT

    4.5" x 20" Nitrate Removal Cartridge Using Nitrate Selective Anion Resin Utilizes FDA Grade high capacity anion exchange resin Removes or Reduces Nitrate Soft water feed is recommended Fits any standard big blue 4.5" x 20" Housing Removes Up To 31,994 mg/l ( 1,871...
    $182.95
    $332.97
    $182.95
  • Discover our Watts FMRO5 Reverse Osmosis Filters from US Water Systems Inc: a complete water filtration solution with three cylindrical filters, a sanitizing packet, and RO technology. Enjoy exceptional fluid management at home today.

    Watts FMRO5 Reverse Osmosis Filters

    Watts FMRO5 Reverse Osmosis Filter Pack Watts Water Technologies, Inc. is a supplier of products and solutions that manage and conserve the flow of fluids and energy into, through and out of buildings in the residential and commercial markets. The Company, through its subsidiary,...
    $49.95
    $90.91
    $49.95
  • US Water Systems Incs Calcite Replacement Cartridge (4.5 x 10) features an American flag design, Made in America text, and includes a Double O-Ring Seal to efficiently neutralize acidic water while ensuring optimal performance.

    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,...
    $57.95
    $105.47
    $57.95
  • The High Temperature Filter Housing Kit - 10 Inch (HT10) by US Water Systems Inc features a brown plastic body with multiple inlet and outlet ports on top for high-temperature applications.

    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...
    $89.95
    $112.44
    $89.95
  • The 4.5 x 10 High Flow Filter Housing from US Water Systems Inc features a sleek black cylindrical design, ensuring clean water flows seamlessly throughout your home as a Whole House Filter.

    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...
    $69.95
    $87.44
    $69.95
  • Four Filter Bracket Screws for Slimline Filters from US Water Systems Inc (MS1034) are lined up in a row on a white background.

    Filter Bracket Screws for Slimline Filters | MS1034

    Mounting Bracket Screws for 2.5" Slimline Filter Housings Fits most 2.5" x 10" and 2.5" x 20" slimline filter housings Also fits most RO filter housings Set of 4 #10 x 3/4" Part # MS1034
    $0.85
    $1.06
    $0.85
  • The Watts 4 Stage Manifold Reverse Osmosis PWRO4 Filter Pack by US Water Systems Inc includes three NSF Certified filters and a Sani-System sanitizing packet, proudly Made in America for your water filtration needs.

    Watts 4 Stage Manifold Reverse Osmosis PWRO4 Filter Pack

    There are lots of filter companies selling Reverse Osmosis filters, but if you look closely, you'll find that nearly all of them are made in Taiwan or China. While it is not always possible to sell everything that is American-Made, this 4-Stage Reverse Osmosis...
    $44.95
    $81.81
    $44.95
  • The US Water Interceptor PAC 4.5 x 20 DOE Filter Cartridge by US Water Systems Inc features an American flag label with Made in America, showcasing its premium quality. Its electro-adsorptive filter technology ensures superior purification for peace of mind.

    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...
    $169.95
    $283.25
    $169.95
  • The 2.5 x 10 Limeblaster Replacement Cartridge, model LBC-2510-D by US Water Systems Inc, is a cylindrical water filter with blue caps. The label features the brands name, an American flag, and Made in America. It is designed for excellent water efficiency and scale prevention at home.

    2.5 x 10 Limeblaster Replacement Cartridge | LBC-2510-D

    2.5" x 10" US Water Limeblaster Replacement Cartridge The Limeblaster Foodservice Replacement Cartridge prevents scale formation in any water using appliance, water heating device or downstream equipment, to improve efficiency and prolong the life. The Limeblaster media prevents scale by transforming dissolved hardness minerals...
    $24.95
    $41.59
    $24.95
  • The Limeblaster 2.5 x 19 Replacement Cartridge by US Water Systems Inc is a tall cylindrical filter with green caps, an American flag label stating US Water - Made in America, and is resistant to bacteria and chemicals for optimal performance.

    Limeblaster 2.5" x 19" Replacement Cartridge | 222 Seal

    2.5" x 19" 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...
    $40.95
    $68.25
    $40.95
  • The US Water 4.5 x 20 Chloramine Carbon Block Filter Double O-Ring Seal by US Water Systems Inc has red ends, a patterned surface, and features an US Water label with an American flag design.

    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...
    $149.95
    $272.91
    $149.95
Residential Water Softener & Filter Collage

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.

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Reverse Osmosis Filters

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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.

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