20" x 4.5" Whole House Water Filter Replacement Set, 3-Stage High Flow System with PP Sediment, GAC & CTO Carbon Block, Reduces Chlorine & Odors, Fits All 20" Housings
20" x 4.5" Whole House Water Filter Replacement Set, 3-Stage High Flow System with PP Sediment, GAC & CTO Carbon Block, Reduces Chlorine & Odors, Fits All 20" Housings
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About This
- [STAGE 1: DEEP FILTRATION SEDIMENT SHIELD] Kickstart your purification with our 20" x 4.5" high-capacity spun PP sediment filter. Its multi-layered, melt-blown construction provides deep filtration, reliably capturing and significantly reducing sand, rust, dirt, and suspended particulates from your water supply. This essential first step effectively clarifies your water and protects the downstream carbon stages.
- [STAGE 2: HIGH FLOW GAC CHLORINE ABSORPTION] The second stage features our Granular Activated Carbon (GAC) filter. Filled with premium loose carbon granules, it is engineered for exceptional water flow while rapidly absorbing heavy chlorine, bad tastes, and foul odors. This stage acts as the heavy-lifter for chemical reduction, drastically improving your water's freshness without causing drops in your home's water pressure.
- [STAGE 3: SUPERIOR CTO FINAL POLISH] The final stage utilizes our densely packed standard CTO carbon block. Working in perfect tandem with the GAC filter, it provides a deep, final polish to your water. It efficiently captures residual chlorine, fine particles, and harmful VOCs that might have passed through. This ensures the water flowing from every faucet is incredibly clean, crisp, and refreshing.
- [UNIVERSAL FIT & MAXIMUM EFFICIENCY] Built to precise industry standards, these 3 replacement cartridges offer a universal fit for most standard 20-inch heavy-duty whole house water filtration housings. The strategic combination of GAC and CTO filters provides the perfect balance between massive chemical absorption capacity and excellent water flow rates, delivering heavy-duty purification tailored for large households.
- [EXTENDED LIFESPAN & EFFORTLESS SETUP] Enjoy premium, fresh water for 3 to 6 months, or up to 100,000 gallons (lifespan depends on local water quality and daily usage). Because this set includes a GAC filter with loose carbon, please flush the newly installed carbon stages for 10 to 15 minutes to clear any harmless manufacturing carbon fines. Once the water runs clear, you are ready to Go with the Pure Flow.
Overview
- Material : Carbon Fiber, Polypropylene (PP)
- Product Dimensions : 4.5"D x 4.5"W x 20"H
- External Testing Certification : NSF
- Product Benefits : Removes chlorine for cleaner, better-tasting water
- Brand : Purcooflow

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.
👉 Prevent scale buildup and keep your appliances running efficiently.
👉 Softer, brighter clothes that last longer with every wash.
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.
FAQ
Water Filtration & Home Water Guide