General Tools 1809 Stem and Cartridge Puller Allows for the easy removal of single-lever faucet stems and cartridges Works on plastic and brass cartridge stems for faucets, tubs and shower valves For easy removal of Moen style single lever faucet stem and cartridge and other plastic and cartridge sleeve Works on plastic and brass faucets and shower valves Great tool for making quick, economic repairs to leaking valve stems and cartridges