Customer currently has the hot side stem of a two handle system leaking behind the wall. Due to the age of system, John, the plumber cannot replace the shower handle stem. This estimate is to provide and install a Moen shower diverter. This diverter comes with new cartridge, new Bezel trim piece and single handle for easy on off and temperature control. John the plumber offers one year parts and labor, hassle, free warranty for free on this service.