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)

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About This COMPATIBLE REPLACEMENT MODELS – Designed to fit standard 20 x 4.5 whole house filter housings and a replacement for Pentair polypropylene filter cartridge Pentair DGD-25 01-20, 155360-43, P1-20BB, SDC-45-2001, FPMB-BB1-20, and SDF-45-2001; suitable for most 4.5” x 20” water filter housings 3 MICRON DEPTH SEDIMENT FILTRATION – Spun wound polypropylene construction captures fine particles throughout the cartridge depth, helping reduce rust, sand, silt, dirt, and scale commonly present in well water and municipal water systems. FINE SEDIMENT POLISHING DESIGN – The graded density depth structure traps larger debris on the outer layers while finer particles are captured deeper inside, making 1 micron filtration ideal for applications needing finer sediment control ahead of downstream filtration. SERVICE LIFE VARIES BY WATER CONDITIONS – Replacement frequency depends on sediment levels, water quality, and micron rating; finer filters capture smaller particles more quickly, so monitoring flow or pressure changes helps determine when cartridge replacement is needed. FINE SEDIMENT PROTECTION FOR WHOLE HOUSE SYSTEMS – Commonly installed as a secondary or polishing-stage sediment filter to help protect plumbing, appliances, water softeners, and carbon filters from fine particulate buildup. Overview Material : Polypropylene (PP) Product Dimensions : 4.49"D x 4.49"W x 20"H Item Weight : 6 Pounds External Testing Certification : NSF Product Benefits : Reduces sediment, rust, dirt, sand, silt, and corrosion in water Show more