BrassCraft 1/2 in. Nom Cold Expansion PEX Barb x 3/8 in. O.D. Comp Straight Stop

The BrassCraft 1/2 in. nominal cold-expansion PEX barb x 3/8 in. O.D. compression straight stop controls water flow to household fixtures. It is commonly used where the supply pipe enters from the floor; a quarter turn of the handle stops water to faucets, toilets, dishwashers, icemakers or washing machines for maintenance and repair.