| USWF 600GPD Tankless Undersink RO System | waterfilters.net | 194.82 USD | 359.99 USD | −45.9% |
| USWF 50 lbs. 1 cu. ft. Ion Exchange Water Softener Resin | discountfilterstore.com | 124.99 USD | 172 USD | −27.3% |
| USWF 50 lbs. 1 cu. ft. Ion Exchange Water Softener Resin | waterfilters.net | 124.99 USD | 172 USD | −27.3% |
| USWF 2.25 Gallon Stainless Steel Gravity Fed Filter System With Fluoride Filtration | waterfilters.net | 146.1 USD | 190.33 USD | −23.2% |
| DA29-00003G Samsung Comparable Refrigerator Water Filter Replacement By USWF | waterfilters.net | 18.59 USD | 23.99 USD | −22.5% |
| Alternative Culligan S1A-D Whole House Water Filter Replacement Cartridge | water-softeners-filters.com | 14.82 USD | 18.17 USD | −18.4% |
| 82 GPM Pool Ultraviolet LightSterilization System H4-PL by USWF | waterfilters.net | 909.99 USD | — | — |
| 42 GPM USWF Pool Ultraviolet Light Sterilization System H4-PS by USWF | waterfilters.net | 675.64 USD | — | — |
| USWF-4CR2 Rack Mounted Whole House Ultraviolet Light Disinfection System 15 GPM | waterfilters.net | 459.32 USD | — | — |
| USWF-4C151 Whole House Ultraviolet Light Disinfection System 15 GPM | waterfilters.net | 458.48 USD | — | — |
| USWF-4C101 Whole House Ultraviolet Light Disinfection System 10 GPM | waterfilters.net | 435.1 USD | — | — |
| USWF-4CR1 Rack Mounted Whole House Ultraviolet Light Disinfection System 8 GPM | waterfilters.net | 354.88 USD | — | — |
| USWF-TAC-3L - USWF TAC Salt-Free Scale Reduction Media 3 Liters | waterfilters.net | 263.82 USD | — | — |
| USWF-TAC-3L | discountfilterstore.com | 263.82 USD | — | — |
| USWF Chloramine 10"+20" 2-Stage Filtration System, Sediment & Chloramine Carbon Block filters, 1" Inlet/Outlet | waterfilters.net | 243.99 USD | — | — |
| USWF-TAC-2L - USWF TAC Salt-Free Scale Reduction Media 2 Liters | waterfilters.net | 239.99 USD | — | — |
| USWF-TAC-2L | discountfilterstore.com | 239.99 USD | — | — |
| RCHO4.12 USWF UV Disinfection System | Replacement Controller for USWF-4C101, 4C151, & 4CR2 | waterfilters.net | 221.74 USD | — | — |
| USWF Chloramine Dual 20" 2-Stage Filtration System, Sediment & Chloramine Carbon Block filters, 3/4" Inlet/Outlet | discountfilterstore.com | 212.09 USD | — | — |
| 2-Stage Chloramine Reduction Whole House Water Filtration System by USWF, Sediment and Chloramine Reduction Carbon Block, 1" Inlet/Outlet | waterfilters.net | 195.08 USD | — | — |
| USWF Tankless RO Water Filter System – Reduces Fluoride, Lead, PFAS & more | fridgefilters.com | 194.82 USD | — | — |
| 2-Stage Lead Reduction Whole House Water Filtration System by USWF, Sediment and Lead Reduction Carbon Block, 3/4" Inlet/Outlet | waterfilters.net | 190.76 USD | — | — |
| USWF Lead Reduction 2-Stage Whole House Water Filtration System, Sediment And Lead Reduction Carbon Block, 3/4" Inlet/Outlet | discountfilterstore.com | 190.76 USD | — | — |
| USWF Lead Dual 20" 2-Stage Filtration System, Sediment & Lead Carbon Block filters, 1" Inlet/Outlet | discountfilterstore.com | 187.59 USD | — | — |
| USWF Lead Dual 20" 2-Stage Filtration System, Sediment & Lead Carbon Block filters, 3/4" Inlet/Outlet | discountfilterstore.com | 187.59 USD | — | — |
| USWF Chloramine Dual 20" 2-Stage Filtration System, Sediment & Chloramine Carbon Block filters, 1" Inlet/Outlet | discountfilterstore.com | 183.1 USD | — | — |
| RCB4.01 USWF UV Disinfection System | Replacement Controller for USWF-4CR1 | waterfilters.net | 172.08 USD | — | — |
| 2-Stage Chloramine Reduction Whole House Water Filtration System by USWF, Sediment and Chloramine Reduction Carbon Block, 3/4" Inlet/Outlet | waterfilters.net | 160.96 USD | — | — |
| 2-Stage Lead Reduction Whole House Water Filtration System by USWF, Sediment and Lead Reduction Carbon Block, 1" Inlet/Outlet | waterfilters.net | 157.84 USD | — | — |
| Chloramine Reducing Filter by USWF Catalytic Carbon Block 1 Micron 20"x4.5" | waterfilters.net | 155.59 USD | — | — |
| USWF PFAS (Forever Chemicals) NSF53 Certified, Dual 20" 2-Stage Filtration System, Sediment & PFAS Carbon Block filters, 1" Inlet/Outlet | discountfilterstore.com | 154.9 USD | — | — |
| USWF Forever Chemical (PFAS) NSF53 Certified, Dual 20" 2-Stage Filtration System, Sediment & PFAS Carbon Block filters, 3/4" Inlet/Outlet | discountfilterstore.com | 154.05 USD | — | — |
| 2-Stage CTO(Chlorine Taste and Odor) Reduction Whole House Water Filtration System by USWF, Sediment and CTO Reduction Carbon Block, 1" Inlet/Outlet | waterfilters.net | 145.3 USD | — | — |
| USWF CTO (Chlorine Taste & Odor) Dual 20" 2-Stage Filtration System, Sediment & CTO Carbon Block filters, 3/4" Inlet/Outlet | discountfilterstore.com | 140.32 USD | — | — |
| USWF Chloramine Dual 10" 2-Stage Filtration System, Sediment & Chloramine Carbon Block filters, 1" Inlet/Outlet | discountfilterstore.com | 130.19 USD | — | — |
| 2-Stage CTO(Chlorine Taste and Odor) Reduction Whole House Water Filtration System by USWF, Sediment and CTO Reduction Carbon Block, 3/4" Inlet/Outlet | waterfilters.net | 125.12 USD | — | — |
| USWF Replacement for S410RL-HOUV Lamp | Fits the VIQUA VH410, SP410-HO, SC-410, & SPV-8 Series UV Systems | waterfilters.net | 122.99 USD | — | — |
| USWF Replacement for 602856 UV Lamp | Fits the VIQUA J/J+/K/K+, Pro 30, Pro 50, S80, SM80, & SV50 Series UV Systems | waterfilters.net | 121.19 USD | — | — |
| Lead Reducing Carbon Block Filter by USWF 0.5 Micron 20"x4.5" | waterfilters.net | 116.95 USD | — | — |
| USWF Replacement for 602855 UV Lamp | Fits the VIQUA H/H+, & Pro 20 Series UV Systems | waterfilters.net | 116.85 USD | — | — |