Check the listing for details. Pentair Pentek DGD-7525 Big Blue Gradient Sediment Water Filter 155355-43. Condition: New. Listed at 23.95 USD. Pentair Pentek DGD-7525 Big Blue Gradient Sediment Water Filter 155355-43 The Pentek DGD-7525 replacement Big Blue gradient water filter is an all-in-one pre- and post- filterthat eliminates the need for step-down filtration systems in your home. This Pentek water features an outer layer with a 75 micron pre-filter that captures larger sediment and a 25 micron inner-layer that effectively traps finer particles. The pure polypropylene construction of this 25 micron water filter results in a water filter cartridge that's resistant to chemicals and corrosion. WHKF-GD25BB Pentek DGD-7525 Specifications: Part Number: DGD-7525; 155355-43Micron Rating: 75 (pre-filter); 25 (post-filter)Capacity: 8,000 gallons Temp Range: 40 - 145 F Dimensions: 4 1/2" x 9 7/8" Flow Rate: 10 GPM @ < 1 psi NSF Certified for Material Requirements Reduces sand, dirt, silt, rust, scale particles, and sediment Pentek DGD-7525 reduces the following: SedimentDirtRust The Pentek DGD-7525 fits standard size 10" Big Blue filter housings including: Culligan Culligan HD-950 housing American Plumber W10-PR W15-PR