BrassCraft KTCR1901X R1 1/2" Nominal Compression Inlet x 3/8" O.D Compression x 3/8" O.D Compression Dual Outlet 1/4-Turn Ball Valve Compatible with copper and pex (pex installations require a stainless steel tube insert) Ideal for adding dishwashers, ice makers, water filters and instant hot water dispensers to existing water supply Smooth, quarter-turn operation, on/off flow control with a 90 degree turn of the handle