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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10" x 4.5" Whole House Coconut Shell Activated Carbon Water Filter Replacement Cartridge - Compatible with WFHDC8001, CB-BB-10, FXHTC, GXWH40L, GXWH35F, GNWH38S, CTO10BB - 1 Pack
Regular price $37.79Regular price -
Pentair Everpure H-300-NXT Quick-Change Filter Cartridge, EV927441, for Use in Everpure H-300-NXT Drinking Water Systems, 300 Gallon Capacity, 0.5 Micron
Regular price $274.55Regular price -
Express Water – 1 Year Reverse Osmosis System Replacement Filter Set – 8 Filters with 50 GPD RO Membrane, Carbon GAC, ACB, PAC Filters, Sediment SED Filters – 10 inch Size Water Filters…
Regular price $113.39Regular price -
Watts Premier 105311 RO-4 RO-Pure UF3 Sediment Filter
Regular price $14.52Regular price -
PUREPLUS 5 Micron 10" x 4.5" Whole House Coconut Shell Activated Carbon and KDF Water Filter, Heavy Metal Removal Replacement Water Filter, Compatible with GXWH40L, GXWH35F, BB10, CTO10BB-KDF, 2 PACK
Regular price $83.29Regular price -
Waterspecialist 3US-PF01 3US-MAX-F01 Under Sink Water Filter, Replacement for Filtrete® 3US-PF01, 3US-MAX-F01H, Delta RP78702, Manitowoc K-00337, K-00338, HF20, HF25, HF27, NSF/ANSI 42, 2 Pack
Regular price $65.79Regular price -
PUREPLUS 5 Micron 10" x 4.5" Whole House Activated Carbon Water Filter, Enhanced Lead Removal Carbon Replacement Cartridge, Compatible with GE GXWH40L, GXWH35F, BB10, FXHTC, FC15B, CTO10BB-CQB, 2PACK
Regular price $111.99Regular price -
Express Water – 6 Month Direct System Under Sink System Replacement Filter Set – 3 Filters with Carbon (GAC, ACB) and Sediment (SED) – 10 inch Size Water Filters
Regular price $41.10Regular price -
Watts Premier WP105381 VOC Filter RO Pure Plus Reverse Osmosis Water Filter Replacement Kit, 1 Count, Silver
Regular price $36.62Regular price -
PUREPLUS 3-Pack Whole House Water Filter Set – Includes 2 x CTO10BB Carbon Block Filters and 1 x CTO10BB-CQB Enhanced Lead Reduction Filter, Fits Standard 10" x 4.5" Filter Housings
Regular price $89.59Regular price -
Watts Premier Bi-Annual RO Pure Plus 2-Pack Filtration Kit for 4 Stage Pure Plus/Zero Pure Plus Reverse Osmosis System, Push Button Water Filter Replacement, Sediment Filter, Carbon Pre-Filter
Regular price $55.99Regular price -
PUREPLUS 10" x 4.5" Whole House Carbon Water Filter Combo Pack, CTO10BB + CTO10BB-KDF + CTO10BB-CQB, 5 Micron, Lead & Heavy Metal Reduction, Fits GE GXWH40L, DuPont WFHDC8001, 3-Pack
Regular price $96.31Regular price -
PUREPLUS 5 Micron 10" x 4.5" Whole House Coconut Shell Activated Carbon and KDF Water Filter, Heavy Metal Removal Replacement Water Filter, Compatible with GXWH40L, GXWH35F, BB10, CTO10BB-KDF, 1 PACK
Regular price $50.39Regular price -
Brondell RF-20 Water Filter Replacement for Circle, Sediment and Carbon Block, Under Sink Reverse Osmosis Filtration System, Lasts 6 Months
Regular price $111.99Regular price -
PUREPLUS 5 Micron 10"x4.5" Whole House Water Filter Replacement Bundle 3 Pack – 1× CTO Chlorine Taste Odor Reduction + 2× KDF Heavy Metal Filter – Fits Standard Housings GXWH40L, WFHDC8001, FXHTC
Regular price $89.59Regular price -
Tier1 Undersink Water Filter Replacement for GE FQSVF, GXSV65, GNSV70, GNSV75 - Carbon Block Media Reduces Chlorine and Other Water Contaminants - 2 Pack
Regular price $41.43Regular price -
PUREPLUS 5 Micron 10"x4.5" Whole House Water Filter Replacement Bundle 3 Pack – 2× CTO Chlorine Taste Odor Reduction + 1× KDF Heavy Metal Filter – Fits Standard Housings GXWH40L, WFHDC8001, FXHTC
Regular price $80.85Regular price -
Aquaboon String Wound Water Filter Cartridge - Whole House 10 Micron Water Filter 10 x 2.5 Replacement for Well Filter Matches WHKF-WHSW, P5, 6-Pack
Regular price $34.26Regular price -
AO Smith 2.5"x10" 35 Micron Sediment Water Filter Replacement Cartridge - 2 Pack - For Whole House Filtration Systems - AO-WH-PRE-R2
Regular price $17.49Regular price -
AQUA CREST OCS2 Under Sink Water Filter, Replacement for Everpure OCS2, 2CB5, 2H-L, 2CB-GW, ADC, OW2-Plus, EV9618-02, EV9634-26, EV9634-01, EV9617-05, Aquverse A100, NSF/ANSI 42 Certified
Regular price $54.59Regular price -
Aquaboon 5 Micron 20 x 4.5 Whole House Sediment Filter Cartridge 20 inch Water Filter Replacement Compatible with DGD-5005-20, FP25B, AP810-2, 10-Pack
Regular price $195.71Regular price -
Express Water – 50 Pack Sediment Water Filter Replacement – 1 Micron, High Capacity – 10 inch – Under Sink and Reverse Osmosis System Filters (Model: FLTSED0150)
Regular price $97.99Regular price -
Waterdrop RF10 Replacement Filter Cartridge for 10UA/10UB Under Sink Water Filter, Reduces PFAS, PFOA/PFOS, Lead, Chlorine, Bad Taste & Odor, NSF/ANSI 42 Certified, 11K Gallons High Capacity, 2 PACK
Regular price $66.49Regular price -
ICEPURE 3US-AF01 Under Sink Water Filter, Replacement for Standard 3US-AF01, 3US-AS01, Whirlpool WHCF-SRC, WHCF-SUFC, WHCF-SUF, 3 Pack
Regular price $88.19Regular price -
W50PEHD Whole House 50 Micron 10 x 4.5 Pleated Sediment Well Water Filter Cartridge Replacement for R50-BBSA, ECP50-BB, 255492-43, R50-BB, SPC-45-1050, AO-WH-PREL-RPP, FXHSC, W50PEHDA (Pack of 3)
Regular price $51.79Regular price -
Waterdrop FUL12 Replacement for 10UA PRO/10UB PRO/UL12A/UL12B Under Sink Water Filter, Reduces PFAS, PFOA/PFOS, Lead, Chlorine, Bad Taste & Odor, 11000 Gallons (NOT Replacement for 10UA/10UB)
Regular price $46.19Regular price -
ICEPURE 3US-AF01 Under Sink Water Filter, Compatible with Standard Filtrete 3US-AF01, 3US-AS01, Whirlpool WHCF-SRC, WHCF-SUFC, WHCF-SUF, Pack of 2
Regular price $41.99Regular price -
Waterdrop RF10 Water Filter Replacement for Waterdrop 10UA/10UB/10UB-B Under Sink Water Filter, Reduces PFAS, PFOA/PFOS, Lead, Chlorine, Bad Taste & Odor, NSF/ANSI 42 Certified, 1 Year, 1 Pack
Regular price $34.57Regular price -
Whole House 5 Micron 10 x 4.5 Pleated Sediment Well Water Filter Cartridge Replacement for W5CPHD, CP5-BBS, CP5-BB, ECP5-BB, 255490-43, SPC-45-1005, FM-BB-10-5, SPF-45-1005, PE-F10B-5 (Pack of 3)
Regular price $51.79Regular price -
PUREPLUS WFC5300A Under Sink Water Filter, 22000 Gallons, 99.99% Chlorine Reduction, NSF/ANSI Certified, Replacement for WFS5300A Under Counter Water Filtration System
Regular price $61.59Regular price -
FXHSC Whole House 20 Micron 10" x 4.5" Pleated Sediment Well Water Filter Cartridge Replacement for ECP20-BB, S1-BB, W20CLHD, SPC-45-1020, AO-WH-PREL-RP, WHKF-WHPLBB, WFHDC3001 (Pack of 3)
Regular price $51.79Regular price -
ICEPURE 3US-AF01 Under Sink Water Filter, Replacement for Standard 3US-AF01, 3US-AS01, Whirlpool WHCF-SRC, WHCF-SUFC, WHCF-SUF, 1 Pack
Regular price $39.19Regular price -
Brondell H2O+ Coral UC300 Three-Stage Undercounter Water Filtration System (UF-35 Replacement Filters)
Regular price $111.99Regular price -
20 Micron Water Filter 10" x 4.5", 10-inch Whole House Heavy Duty String Wound Sediment Pre-Filters for Well Water, Replacement Cartridge for WP25BB97P, RS24, SWC-45-1020, PC10, 4-Pack
Regular price $69.99Regular price -
Culligan US-DC3-R Direct-Connect Under-Sink Water Filter Cartridge – Quick Twist-Lock, 4,750-Gallon/12-Month Capacity, Removes Lead, Chlorine, Taste & Odor, Microbial Cysts
Regular price $99.81Regular 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...
