1/2 in. Nom Sweat Inlet x 3/8 in. OD Comp Outlet 1/4-Turn Angle Ball Stop Compatible with copperEasy to remove handle protects against accidental operation during rough ins.Smooth, quarter-turn operation, on/off flow control with a 90 degree turn of the loose key handleBrass ball ensures smooth operation without freeze-ups even after long periods without useMachined body provides strength, durability and long-lasting performancePressure rating 125 PSI maximumIAPMO and CSA listed to ASME A112.18.1/CSA B125.1