Pentek - PCC-1 - 9-5/8" x 2-7/8" Poly Phosphate Crystals - Scale Inhibitor Cartridge Filter Heavy Metal Reduction1924 If you notice a significant

If you notice a significant drop in water production or TDS creep

and check for leaks during initial flow

This filter also protects downstream equipment like water heaters

Common compatible housing models include Pentek 20-BB

Compatible with residential RO units

Pentek - PCC-1 - 9-5/8" x 2-7/8" Poly Phosphate Crystals - Scale Inhibitor Cartridge Filter Heavy Metal Reduction1924 If you notice a significantThe Pentek PCC 1 is a 9 5 8" x 2 7 8" polyphosphate scale inhibitor cartridge that prevents scale and rust buildup in residential and commercial water systems using sodium calcium hexametaphosphate crystals. Designed for standard 10" housings, it delivers up to 5 GPM flow rate with integrated post filtration in a durable polypropylene shell. SPECIFICATIONS Pentek PCC 1 Key Specs Filter Media Polyphosphate Sodium calcium hexametaphosphate crystals