Standard 10 inch and 20 inch String Wound Sediment Water Filter Replacement. 25 Pack 10″ x 2.5″ String Wound Sediment Water Filter Whole House RO Replacement. 1-6 Pack 10″ x4.5″ String Wound Sediment Water Filter for Big Blue 1/5/10 Micron. 25 Pack 20″ x 2.5″ String Wound Whole House Sediment Water Filter Replacement US. 6 Pack 20″ x 4.5″ Big Blue Whole House System String Wound Sediment Water Filter. 50 Pack 10″ x 2.5″ String Wound Sediment Water Filter Whole House RO Replacement. 20 Pack 10″ x 4.5″ String Wound Sediment Water Filter 1/5/10 Micron for Big Blue. 50 Pack 20″ x 2.5″ String Wound Sediment Water Filter Whole House Well Cartridge. 10 Pack 20″ x 4.5″ String Wound Whole House PP Sediment Water Filter 5/20 Micron. 10 Pack 5 Micron 4.5 x 20-inch String Wound Whole House PP Sediment Water Filter. The string wound filter has a deep graded honeycomb structure, dense near the inside core and more open and sparse near the outside edge, forming an effective depth filtration filter, catching larger particulates first and then smaller near the center core, effectively increasing the dirt holding capacity of the filter. Significant Difference between String Wound Filter with Melt-Blown Filter. Flow Rate: String Wound Filter > Melt-Blown Filter. Dirty-holding Capacity: String Wound Filter > Melt-Blown Filter. Service Life: String Wound Filter > Melt-Blown Filter. 5 Micron 20″ x 4.5″ universal string wound filter cartridge fits most 20 inch big blue filter housings, as prefilter of reverse osmosis (RO) systems and whole house water filtration, as well as variety of commercial and industrial water treatment systems. Remove 99% particles, silt, sand, rust and other undissolved particles in dirty water. As the first line of defense in the filtration system, protect your water using appliances and plumbing for cleaner water, improve water quality and taste. Food grade 100% Polypropylene material, lead and BPA-free. Non-toxic, odorless, no leaching or secondary pollution. Providing a healthy, safe water-filtering experience. Food-grade material, meets NSF42 and CFR21 certification. For better water quality, recommended replace 2 or 3 times every year, depending on the quality of the original water source and application type. 3M Aqua-Pure 5618903, AP810-2. Aqua Sun International SWS-BB. Express Water WH300SCKS, WH300SCPS, WH300SCGS. ISpring FP25B, FP25BX2, WGB22B, WGB22BM, WGB32B, WGB32BM. Pentair DEV910837, DGD-5005-20, EV910837, P5-20BB. Pentek CWD-PENTEK-DGD-5005-20, DGD-5005-20, P5-20BB. Ronaqua 10S-20BB5, BBSED-20B4, 2C-20BB5. 1 Pack: 1 x Water Filter. 2 Pack: 2 x Water Filter. 4 Pack: 4 x Water Filter. 6 Pack: 6 x Water Filter. 8 Pack: 8 x Water Filter. 10 Pack: 10 x Water Filter. You may also like. Returning items should include original package, invoice, accessories. Was established in the United States. In 2006 and is headquartered in Texas. Which commits to the research and development and production of microfiltration, ultrafiltration and reverse osmosis membranes and water purification products. Spares no effort to offer customers exceptional selection and value, provide the highest quality of service and products in the water treatment industry, and satisfycustomers with superior quality water filtration products that will lead to a healthier lifestyle.