Unicel (K-41115-B) 10" x 4.5" Pleated 1 Micron Polyester Filter 20 inch x 4.5 inch Big Blue Filters2774 The compressed GAC media core

The compressed GAC media core provides excellent contact time for chlorine reduction while maintaining flow rate

Compatible with standard 4-inch commercial housings rated for up to 300 psi

Standard commercial housing size compatible with 4-inch diameter FilmTec EP membranes up to 120 inches in length

HM Digital microprocessor technology delivers lab-quality measurements in a compact residential package

125 gallons | Extended: 625–10

Unicel (K-41115-B) 10" x 4.5" Pleated 1 Micron Polyester Filter 20 inch x 4.5 inch Big Blue Filters2774 The compressed GAC media coreUnicel 1 Micron Pleated Polyester K 41115 B 10" x 4. 5" Big Blue Pleated Filter Washable, reusable sediment filtration for whole house and well systems. Clean with a garden hose, use again and again. Made in USA 1 Micron Reusable WHY IT WORKS High surface area pleated polyester reduces sediment and extends service life 1 Micron Pleated Design Polyester cloth pleats capture fine sediment, rust, and particulate down to 1 micron while maintaining