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3-Pack O-Rings For 2.5" US Water Slimline Filter Housings
O-Rings for all US Water Slimline 2.5" Filter Housings - 3 Pack Also fits Liquatec and Pentek 2.5" slimline housings It's always a good idea to have spares Be sure to lubricate o-rings with silicone, not vaseline or petroleum-based products (Silicone lubricant sold separately)...-
$8.25 - $4.95
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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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25 Foot Water Softener Drain Line - 5/8"
25 Foot Length 5/8" Poly Tubing For Water Softener & Backwash Filter Drains 5/8" O.D. - 1/2" I.D. 25 foot length Designed to fit all US Water Residential and Light Commercial Water Softeners and Backwashing Filters including the following Models: Aquatrol Fusion Synergy Prelude...-
$46.87 - $28.12
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US Water Big Blue Commercial Filter Housing 4.5 x 20 | uswatersystems.com
4.5" X 20" Commercial-Grade Single Big Blue Cartridge Filter Housing With 3/4" or 1" Inlet/Outlet - Includes Mounting Bracket, Wrench, and Screws The US Water 4.5 x 20 Big Blue Cartridge Housing is a Commercial Grade Housing that will handle heavy filtration needs for...-
$199.92 - $119.95
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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 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 Carb-Cat Catalytic Granular Activated Carbon - 1/2 CU/FT
Carb-Cat Granular Activated Catalytic Carbon Technical Overview Carb-Cat is a liquid phase virgin activated carbon that is manufactured to develop catalytic functionality. It is a produced from coconut shell GAC using a highly sophisticated and confidential process. Of course, it is NSF Certified. The...-
$203.25 - $121.95
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Bodyguard Whole House Filtration & Green Wave Salt Free Softener Alternative System
Check out these Great Installations from Our Customers: TAG US on Instagram to be Featured ( #UsWaterSystems) 1 Year Satisfaction Guarantee Removes Harmful Contaminants Reduces Scale without Additives Hair & Skin Health SALT-FREE WHOLE-HOME PROTECTION Removes chlorine, pesticides, & odors Stops hard-water scale,...-
$3,931.67 - From $2,359.00
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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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Trojan UVMAX Lamp for C, C4, D, D Plus, D4, D4 Plus | 602805
Trojan UVMAX Lamp for C, C4, D, D Plus, D4, D4 Plus High Output UV replacement lamp for the Trojan UVMax-C, C4, D, D Plus, D4, D4 Plus Model Systems Includes 1 O-Rings Includes Installation Instructions Trojan Part #602805 Compatible Lamp Replacement Diagram Resources...-
$200.00 - $120.00
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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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Flexx InFusion Iron And Sulfur Eradication System
Flexx inFusion Iron and Sulfur System The Flexx inFusion Iron and Sulfur System is designed for powerful removal of iron and sulfur from residential well water, eliminating rotten egg odor and staining. Built for reliability and performance, it features a durable ceramic rotary disc...-
$4,325.00 - From $2,595.00
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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 ⚠️ Replacing an existing Livation filter? If you bought an American Made Reverse Osmosis System before December 2025, you'll need the Livation Retrofit Installation Kit to install this filter. Why: the...-
$249.92 - $149.95
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Filter wrench for 2.5" Slimline Housings
Filter Wrench Fits Most 2.5" x 10" & 20" Slimline Filter Housings Also fits Liquatec, Watts, Flowmatic, and Pentek 2.5" SlimLine housings Fits Hydronix HF2 & HF3 Series Filter Housings Hydronix Part # FW-1 Watts Part # WR100-
$4.92 - $2.95
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Resintech CNS10 Premium 10% Crosslinked Water Softener Resin - 0.5 CU/FT
Premium Grade Strong Acid Cation Exchange Resin With 10% Cross linking Most cation exchange is 8% cross linked. 10% cross linked resin simply has a longer life and is more chemical and chlorine resistant. Resintech CNS10 cation resin provides a high purity, premium cation...-
$149.92 - $89.95
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Filtersorb SP3 NAC Replacement Media For Salt-Free Water Conditioners - 1 Liter (1.72 lbs/Liter)
Filtersorb SP3 NAC Replacement Media For Salt-Free Water Conditioners - 1 Liter (1.72 lbs/Liter) Used in our GreenWave Salt- Free Water Conditioner, the Filtersorb SP3 Media is a new media technology that uses Nucleation Assisted Crystallization (NAC). NAC transforms Calcium and Magnesium (hardness minerals)...-
$191.67 - $115.00
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US Water Systems Maverick Lite Commercial RO System - 200 to 750 GPD
Engineered for Performance Maverick: Engineered for Performance Built Different from the Ground Up Every Maverick Lite is precision-assembled in our U.S. facility with components chosen for longevity, efficiency, and hassle-free operation. Made in America Designed, built & tested in the USA <7-Day Lead Times...-
$1,498.33 - From $899.00
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3/8" x 1/4" x 3/8" Tube John Guest Quick Connect Reducing Tee
John Guest 3/8" (end) x 1/4" (middle) x 3/8" (end) Quick Connect Reducing Tee Fitting Part Number: PP30121208W This fitting is made of the following components: The body is produced in polypropylene (polypro) 'O'Rings are EPDM The collet is produced in polypropylene with stainless...-
$8.67 - $5.20
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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 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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