Collection: RO Replacement Filters
Reverse Osmosis Replacement Filters for Clean and Efficient Water Filtration
RO Replacement Filters are essential for maintaining the performance and purity of your reverse osmosis water filtration system.
Regular filter replacement ensures effective removal of chlorine, heavy metals, sediment, and dissolved solids while keeping your drinking water clean and fresh.
Our collection includes high-performance reverse osmosis replacement filters, RO membrane replacements, and multi-stage RO filter cartridges designed for long-lasting filtration efficiency.
Maintain your system performance with reliable reverse osmosis replacement filters designed for safe and consistent drinking water filtration.
Better Water for Everyday Life
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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 -
Home Master Whole House 4-Layer Sediment 25 Down to 1 Micron, Radial Flow GAC Carbon, 2 orings & Grease, 20gpm, Replacement Filter Set CsetBB2SmgC 20x4.5
Regular price $161.67Regular price -
Home Master Whole House 4-Layer Sediment 25 to 1 Micron, Iron, Radial Flow GAC Carbon, 2 orings & Grease, 15gpm, Replacement Filter Set CsetBB3SmgFeC 20x4.5
Regular price $366.88Regular 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 (4-Pack)
Regular price $106.25Regular 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 (3-Pack)
Regular price $87.49Regular price -
Refillable Mixed Bed DI Resin Filter Cartridge Fits most wide style 3" openings standard 10" size WH Filter Housings and Systems
Regular price $35.00Regular 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 (6-Pack)
Regular price $151.33Regular price -
3M Aqua-Pure Whole House Standard Sump Replacement Water Filter Drop-in Cartridge AP1001, 5566601
Regular price $109.75Regular 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
Regular price $38.21Regular price -
3M Aqua-Pure Whole House Standard Sump Replacement Water Filter Drop-in Cartridge AP420, 5560907
Regular price $167.93Regular 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
Regular price $34.97Regular price -
Aqua-Pure AP117 3M Whole House Standard Sump Replacement Water Filter Drop-in Cartridge, 5541731 (2-pack)
Regular price $95.20Regular 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 (3pk)
Regular price $87.33Regular price -
AO Smith 2.5"x10" 5 Micron Carbon Wrap Sediment Water Filter Replacement Cartridge - 2 Pack - For Whole House Filtration Systems - AO-WH-PRE-RCP2
Regular price $26.59Regular price -
Aquaboon 5 Micron Pleated Sediment Water Filter 10 x 4.5 Cartridge - Whole House Water Filter Replacement - Whole House Water Filters Cartridges Compatible with Well Filters FXHSC, R50-BBSA, 10-Pack
Regular price $139.71Regular price
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Flexible payment options available.
+1 (310) 731 1713 DIY ONLY
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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...
