Kingston KSRP8351CC Cold Ceramic Disc Cartridge (1 Piece), Polished Chrome knurling 02 mm) x (H)7/8" (22

02 mm) x (H)7/8" (22

08 mm) x (H)4" (101

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Kingston KSRP8351CC Cold Ceramic Disc Cartridge (1 Piece), Polished Chrome knurling 02 mm) x (H)7/8" (22Kingston KSRP8351CC Cold Ceramic Disc Cartridge (1 Piece), Polished Chrome The ceramic disc cartridge is the heart of the faucet, controlling its temperature and water flow. Internally, two opposing discs made out of ceramic carbide rotate to control the flow of water. Because ceramic carbide is impervious to friction, it can last for many years before needing replacement. This is a 3 8" x 16PT spline broach quarter turn cold side replacement stem