Protection from Chlorine, Scale, & Corrosion. Removes chlorine, taste, odors and colors from tap water. Protects against scale & rust buildup on pipes & appliances. 20 filter treats up to 12,000 gallons of water. Premium blend of carbon & polyphosphate media in single cartridge. The 20″ filter fits in 20″ BIG Housings, BIG DUO or BIG TRIO housing sets. APECs Chlorine Removal & Anti-Scale Hybrid water filter cartridge treats many common water concerns. This two-in-one hybrid filter cartridge is made from a unique blend of polyphosphate and activated carbon media to effectively control scale and corrosion and remove chlorine. Select granular coconut shell activated carbon is used to remove organic contaminants and chlorine. Then food-grade polyphosphate clear bead media is added to reduce scale buildup by applying a self-healing coating to water pipes and appliances to prevent further development of scale and corrosion. The FI-SCALECAB20-BB filter will fit in our whole house 20 standard housings and it can treat up to 12,000 gallons of water. Chlorine-free, odor free cleaner water. Inhibits scale, rust and corrosion buildup. Protects appliances & equipment from hard water scale. Food grade certified media 100% safe to use. Ideal for homes, restaurants, labs, & light commercial/industrial applications. Cartridge Specifications and Performance Data. GAC Carbon & Polyphosphate Mix. Up to 12,000 gallons. 40º F to 100º F. The item “APEC 20 x 4.5 Big Blue Whole House Chlorine-Removal & Anti-Scale Hybrid Filter” is in sale since Thursday, May 7, 2015. This item is in the category “Home & Garden\Kitchen, Dining & Bar\Small Kitchen Appliances\Water Filters”. The seller is “apecwater” and is located in Hacienda Heights, California. This item can be shipped to United States.