Its sturdy internal structure prevents oxidation, ensuring long service time and stable use for temptrol shower valves Shower valves rebuild Set make of brass, resistant to rust and, with smooth, none burr threads : T-12A temperature control shower valves Set is designed for easily installation, none professional plumber or special tools needed Can repair improper hot cold balance, and clear blockages from long term use The temptrol rebuild Set fits for upgrading or repairing your tub / shower valves, fix tub / shower valves leak, stopping drips in shower valves faucet, Manufacturer: Msioytog