Check the listing for details. Pentair Pentek DGD-5005 155357-43 Dual Gradient Water Filter Cartridge WDGD-5005. Condition: New. Listed at 20.93 USD. Pentair Pentek DGD-5005 155357-43 Dual Gradient Water Filter Cartridge WDGD-5005 The Pentek DGD-5005 replacement water filter cartridge works as a pre- and post-filter to reduce extra fine sand, dirt, silt, rust, and scale particles. The outer layer of the this whole house water filter has a 50 micron rating which filters most of the larger sediment out of the water. The water then passes through the 5 micron inner polypropylene layer which filters finer sand, dirt, sediment, and scale particles. This filter eliminates the need for dual whole house filtration systems. This replacement water filter cartridge is NSF tested and certified and has as much as three times the dirt holding capacity as similar wound filters. Pentek DGD-5005 Specifications: Part Number: DGD-5005 Operating Temperature: 40 - 145 F Dimensions: 4-1/2"x9-7/8" Flow Rate: 10 GPM @ < 1 psi Micron Rating: 50 (pre-filter; 5 (post-filter) Reduces Sand, Dirt, Silt, Rust and Scale Particles NSF Tested & Certified for Material Requirements For more information, View the Product Guide. The Pentek DGD-5005 fits standard size 10" big blue filter housings including: Culligan HD-950