Collection: RO Water Filters
Reverse Osmosis Water Filters for Pure Drinking Water
Tap water can contain dissolved solids, chlorine, heavy metals, and other contaminants that affect water quality.
Reverse osmosis (RO) water filters use advanced multi-stage filtration to remove impurities and deliver purified drinking water.
These systems are designed to provide high-quality filtered water for drinking, cooking, and everyday kitchen use.
RO filtration technology helps reduce contaminants such as lead, chlorine, fluoride, and other dissolved solids while improving water taste and clarity.
Many households combine RO filtration with Whole House Water Filters or Under Sink Water Filters to create a complete home water filtration system.
Explore reliable RO filtration systems designed for modern homes seeking clean, safe drinking water.
Better Water for Everyday Life
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iSpring F3WGB32BKS 3-Stage Whole House Water Filter Set, 4.5” x 20” Sediment, GAC+KDF, and CTO Carbon Block Cartridges, Fits WGB32B-KS
Regular price $226.09Regular price -
iSpring F2WGB22BKS 4.5” x 20” 2-Stage Whole House Water Filter Replacement Pack, Reduces Sediments, Heavy Metals, Chlorine, PFAS, Hydrogen Sulfide, Chloramine, Fits WGB22B-KS
Regular price $149.94Regular price -
Culligan SCWH-5 Whole House Advanced Water Filter, 15,000 Gallons (4 Pack)
Regular price $41.68Regular price -
iSpring F3WGB32BCPB 20" x 4.5" Whole House Water Filters for WGB32B Series Water Filter Systems, includes Sediment, Carbon Block, and Lead-Removal Filters
Regular price $308.69Regular price -
iSpring F4WGB22BM 4.5” x 20” 2-Stage Whole House Water Filter Set Replacement Pack with CTO Carbon Block and Iron & Manganese Reducing Cartridges, Fits WGB22BM, White
Regular price $265.45Regular price -
iSpring F3WGB32BKDS 4.5” x 20” 3-Stage Whole House Water Filter Replacement Pack with Polyphosphate Anti-Scale, GAC+KDF, and CTO Carbon Block Water Filters, Fits WGB32B-KDS
Regular price $517.36Regular price -
Brightify 10"x2.5" 5 Micron Carbon Water Filter, Whole House Carbon CTO Water Filter Cartridge Replacement Fits Culligan D-10A, P5-D, DuPont WFPFC8002, SCWH-5, GE FXWTC, Whirlpool WHCF-WHWC, 4 Pack
Regular price $35.27Regular price -
iSpring F6WGB32B 4.5” x 20” 3-Stage Whole House Water Filter Replacement Pack with Sediment and Carbon Block Cartridges, Fits WGB32B, White, 2 Count
Regular price $279.29Regular price -
Under Sink Water Filter - Water Filter kit for Home Bar and Bathroom,Highly Effective Reduces Chlorine,Bad Taste&Odor,Good Choice for a Countertop Ice Maker,Coffee Maker and Skin Care
Regular price $53.19Regular price -
Brightify 10"x2.5" 5 Micron Carbon Water Filter, Whole House Carbon CTO Water Filter Cartridge Replacement Fits Culligan D-10A, P5-D, DuPont WFPFC8002, SCWH-5, GE FXWTC, Whirlpool WHCF-WHWC, 6 Pack
Regular price $53.19Regular price -
AO Smith 4.5"x10" 25 Micron Sediment Water Filter Replacement Cartridge - For Whole House Filtration Systems - AO-WH-PREL-R
Regular price $53.19Regular price -
iSpring F3WGB32BM 4.5” x 20” 3-Stage Whole House Water Filter Set Replacement Pack with Sediment, CTO Carbon Block, and Iron & Manganese Reducing Cartridges Fits WGB32BM, White (Pack of 1)
Regular price $176.39Regular price -
Tier1 50 Micron 20x4.5 Water Filter | Spun Wound Polypropylene Whole House Water Pre-Filter Cartridge | Replacement for Hydronix SDC-45-2050, P50-20BB | 4.5 x 20 Sediment Water Filter (2-Pack)
Regular price $53.19Regular price -
iSpring F3WGB32BPB 4.5” x 20” 3-Stage Whole House Water Filter Replacement Pack w/Sediment, Carbon Block, and US-Made Lead Reducing Cartridges, Fits WGB32B-PB
Regular price $265.99Regular price -
Tier1 20 Micron 20x4.5 Water Filter | Spun Wound Polypropylene Whole House Water Pre-Filter Cartridge | Replacement for Pentek DGD-7525-20,155356-43, P20-20BB | 4.5 x 20 Sediment Water Filter (3-Pack)
Regular price $84.97Regular price -
PUREPLUS 5 Micron 10" x 2.5" Whole House Grooved Sediment Home Water Filter, Replacement Cartridge for 10 inch RO Pre-Filter & RV Housing, AO-WH-PREV-R2, AP110, WHKF-G05,AB-SGR5M, GXWH20S,CFS10, 2Pack
Regular price $23.79Regular price -
Tier1 5 Micron 20x4.5 Water Filter | Spun Wound Polypropylene Whole House Sediment Pre-Filter Cartridge | Replacement for Pentek DGD-5005-20, SDC-45-2005 | 4.5 x 20 Water Filter Cartridge (6-Pack)
Regular price $148.39Regular price -
PUREPLUS 5 Micron 10" x 2.5" Whole House Grooved Sediment Home Water Filter, Replacement Cartridge for 10 inch RO Pre-Filter & RV Housing, AO-WH-PREV-R2, AP110, WHKF-G05,AB-SGR5M, GXWH20S,CFS10, 6Pack
Regular price $48.99Regular price -
iSpring F3WGB32BDS 4.5” x 20” 3-Stage Whole House Water Filter Replacement Pack with Sediment, Polyphosphate Anti-Scale, and CTO Carbon Block Water Filters, Fits WGB32B-DS
Regular price $450.79Regular price -
Tier1 20 Micron 20x4.5 Water Filter | Spun Wound Polypropylene Whole House Water Pre-Filter Cartridge | Replacement for Pentek DGD-7525-20,155356-43, P20-20BB | 4.5 x 20 Sediment Water Filter (2-Pack)
Regular price $62.15Regular price -
PUREPLUS 5 Micron 10" x 2.5" Whole House Grooved Sediment Home Water Filter, Replacement Cartridge for 10 inch RO Pre-Filter & RV Housing, AO-WH-PREV-R2, AP110, WHKF-G05,AB-SGR5M, GXWH20S,CFS10, 3Pack
Regular price $27.99Regular price -
GE FTHTM Whole House Water Filter, Replacement System, NSF Certified: Reduces Chlorine, Sediment, Rust & Other Impurities, Replace Every 3 Months for Best Results, 1 Filter (Pack of 8)
Regular price $311.81Regular price -
Tier1 20 Micron 20x4.5 Water Filter | Spun Wound Polypropylene Whole House Water Pre-Filter Cartridge | Replacement for Pentek DGD-7525-20,155356-43, P20-20BB | 4.5 x 20 Sediment Water
Regular price $34.99Regular price -
Tier1 1 Micron 20x4.5 Water Filter | Spun Wound Polypropylene Whole House Cartridge | Replacement for Pentek DGD-2501-20, 155360-43, P1-20BB | Sediment & Rust Filtration | 4.5 x 20 Water Filter (2pk)
Regular price $68.87Regular price -
Tier1 5 Micron 20x4.5 Water Filter | Spun Wound Polypropylene Whole House Sediment Pre-Filter Cartridge | Replacement for Pentek DGD-5005-20, SDC-45-2005 | 4.5 x 20 Water Filter Cartridge (2-Pack)
Regular price $74.19Regular price -
Tier1 10 Micron 20x4.5 Water Filter | Spun Wound Polypropylene Whole House Water Pre-Filter Cartridge | Replacement for Hydronix SDC-45-2010 | 4.5 x 20 Sediment Water Filter (2-Pack)
Regular price $59.77Regular price -
Home Master CsetBB2SmgCC Whole House Replacement Filter Set, 4-layer Sediment 25 to 1 micron, Heavy Duty Up-flow KDF85 Catalytic Carbon, 2 orings & grease
Regular price $231.81Regular price -
Tier1 10 Micron 20x4.5 Water Filter | Spun Wound Polypropylene Whole House Water Pre-Filter Cartridge | Replacement for Hydronix SDC-45-2010 | 4.5 x 20 Sediment Water Filter (4-Pack)
Regular price $82.59Regular price -
Home Master Whole House 4-Layer Sediment 25 Down to 1 Micron, Radial Flow Catalytic Carbon, 2 orings & Grease, 20gpm, Replacement Filter Set CsetBB2SmgRFCC 20x4.5
Regular price $195.93Regular price -
Tier1 20 Micron 20x4.5 Water Filter | Spun Wound Polypropylene Whole House Water Filter Cartridge | Replacement for Pentek DGD-7525-20,155356-43, P20-20BB | 4.5 x 20 Sediment Water Filter (25-Pack)
Regular price $429.65Regular price -
Home Master CFKDF85GCC-20BB Replacement Filter, Fits Big Blue, 20" x 4.5" Heavy duty Up-Flow Catalytic Carbon & KDF 85, Filters Chloramines, Chlorine, Chemicals, Heavy Metals, Sediment, more
Regular price $161.67Regular price -
Tier1 5 Micron 20x4.5 Water Filter | Spun Wound Polypropylene Whole House Sediment Pre-Filter Cartridge | Replacement for Pentek DGD-5005-20, SDC-45-2005 | 4.5 x 20 Water Filter Cartridge (25-Pack)
Regular price $460.03Regular price -
Home Master CfRFgaCC-20BB Replacement Whole House Water Filter, High Flow 20gpm, Radial Flow Granular Catalytic Carbon, 20" x 4.5" Fits Big Blue
Regular price $131.43Regular price -
Tier1 20 Micron 20x4.5 Water Filter | Spun Wound Polypropylene Whole House Water Filter Cartridge | Replacement for Pentek DGD-7525-20,155356-43, P20-20BB | 4.5 x 20 Sediment Water Filter (12-Pack)
Regular price $220.21Regular price -
Tier1 10 Micron 20x4.5 Water Filter | Spun Wound Polypropylene Whole House Water Pre-Filter Cartridge | Replacement for Hydronix SDC-45-2010 | 4.5 x 20 Sediment Water Filter
Regular price $39.75Regular price -
Tier1 5 Micron 20x4.5 Water Filter | Spun Wound Polypropylene Whole House Sediment Pre-Filter Cartridge | Replacement for Pentek DGD-5005-20, SDC-45-2005 | 4.5 x 20 Water Filter Cartridge (4-Pack)
Regular price $102.19Regular price
30-Day Easy Returns
Easy returns within 30 days.
Flexible payment
Flexible payment options available.
+1 (310) 731 1713 DIY ONLY
24/7 Live Chat & SMS Support
See the Difference in Your Water — Instantly
Hard water, chlorine, and hidden contaminants can affect your health, skin, and appliances.
Our advanced filtration system removes impurities and delivers clean, safe water throughout your entire home.
Feel the difference in every drop — from your kitchen to your shower.
Pure Water. Better Living.
Experience the difference clean, softened water makes in your daily life — from healthier skin to better tasting drinking water.
👉 Softer skin and smoother hair with every shower.
👉 Enjoy healthier skin and hair with every use.
👉 Prevent scale buildup and keep your appliances running efficiently.
👉 Softer, brighter clothes that last longer with every wash.
FAQ
Is installation difficult?
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No. Our systems are designed for easy DIY installation and most homeowners can install them without professional tools. If you need help, our support team is always available.
Do I need a plumber to install the system?
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No plumber is required. The system connects directly to your existing plumbing with simple fittings.
How does this system improve water quality?
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Our filtration system helps reduce common impurities and minerals that cause hard water problems, improving the taste and clarity of your water.
Will this help protect my appliances?
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Yes. Hard water minerals can build up inside appliances. Our system helps reduce scale buildup, helping extend the life of washing machines, dishwashers, and water heaters.
How often do filters need to be replaced?
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Most filters only need replacement every 6–12 months, depending on usage and local water conditions.
Will this improve my skin and hair?
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Many customers notice softer skin and smoother hair after switching to filtered or softened water.
What if I'm not satisfied with the system?
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If you're not completely satisfied, you can return your product within 30 days for a full refund.
Strategic Partner
Water Filtration & Home Water Guide
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Reverse Osmosis vs Water Filter — Which Is Better?
Not sure if you need Reverse Osmosis or a standard water filter? Learn the real differences, what each system removes, and how to choose the best option for your home.
Reverse Osmosis vs Water Filter — Which Is Better?
Not sure if you need Reverse Osmosis or a standard water filter? Learn the real differences, what each system removes, and how to choose the best option for your home.
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Do I Really Need a Water Filter at Home?
Wondering if your home needs a water filter? Learn how to check your water quality, compare filter types, and choose the right system for safer, better-tasting water.
Do I Really Need a Water Filter at Home?
Wondering if your home needs a water filter? Learn how to check your water quality, compare filter types, and choose the right system for safer, better-tasting water.
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7 Signs You Have Hard Water in Your Home
Water quality plays an important role in everyday life. From drinking water to showering and washing dishes, the type of water flowing through your home affects comfort, cleanliness, and even...
7 Signs You Have Hard Water in Your Home
Water quality plays an important role in everyday life. From drinking water to showering and washing dishes, the type of water flowing through your home affects comfort, cleanliness, and even...
