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Purcooflow 20x4.5 Inch 5 Micron PP Sediment Water Filter, Reduces Sand, Rust, Dirt & Silt, 5 Micron
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- 100% Pure Food-Grade Polypropylene: Made from melt-blown virgin polypropylene. Free from binders, adhesives, or lubricants. It is BPA-free, tasteless, and resistant to chemicals and bacterial growth.
- Advanced Multi-Layer Gradient Density: Featuring a "Rare-to-Dense" 3-layer structure. The outer layer captures larger particles, while the inner layers trap finer sediment. This unique design prevents surface clogging and maximizes dirt-holding capacity.
- Effective Sediment Removal: Rated at a precision 5-micron filtration level. Expertly filters out sand, rust, dirt, silt, scale, and other suspended solids, ensuring crystal clear water for your entire home.
- Universal High-Flow Fit: Standard 20" x 4.5" Big Blue (BB) dimensions. Designed for high-flow whole-house systems, providing a steady water supply with minimal pressure drop for large households.
- Protects Downstream Appliances: As the essential first stage of filtration, it prevents grit and debris from damaging your expensive water heaters, washing machines, and high-end carbon or RO filters.Ultra-Long Service Life & Peak Performance
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Ultra-Long Service Life & Peak Performance: Engineered for endurance, the Purcooflow filter delivers up to 30,000 gallons of pristine water (depending on feed water quality). For optimal results, replace every 3-6 months.
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Tech Specs - 20-inch PP Sediment Filter
100% Food Grade Polypropylene
5 Micron
Standard 20" x 4.5"
Standard 20-inch BB Housings
104°F (40°C)
90 psi
15 GPM
3 - 6 Months
NSF 42 / FDA Compliance
Multi-layer Gradient Density
Compatible with Most 20" × 4.5" Big Blue Housings
Designed to fit most standard 20" × 4.5" Big Blue filter housings used in whole-house water filtration systems. Easy replacement, dependable performance, and broad compatibility.
FAQs
Learn how Purcooflow's multi-layer polypropylene technology removes sediment, protects household appliances, and delivers reliable whole-house filtration performance.
Contact SupportThe Purcooflow PP sediment filter is designed to capture sand, rust, dirt, silt, scale, and other suspended particles down to 5 microns. It helps improve water clarity while protecting downstream filtration systems and household plumbing.
As the first stage of filtration, the PP filter removes larger particles before they reach carbon filters, water softeners, UV systems, or reverse osmosis membranes. This helps extend the life of downstream equipment and maintain overall system efficiency.
The gradient-density structure captures larger particles on the outer layers while trapping finer sediment deeper inside the cartridge. This design increases dirt-holding capacity, reduces surface clogging, and helps maintain stable water flow for longer periods.
No. The large 20" x 4.5" Big Blue design supports flow rates up to 15 GPM. Under normal operating conditions, the filter provides effective sediment reduction while maintaining strong household water flow.
Most households should replace the filter every 3–6 months. Actual replacement frequency depends on water quality and sediment levels. Homes with well water or heavy sediment may require more frequent changes.
Yes. The cartridge is manufactured to standard 20" x 4.5" Big Blue dimensions and is compatible with most major whole-house filter housings that accept standard BB replacement cartridges.




