Description: Nickel-plated copper body for extra strength and corrosion resistance. High precision screw thread. 100% air tightness test. Ball valve: 1/4" Thread male x 3/8 tube quick connect. Tee union: 1/2" Thread male x 1/2" thread female x 1/4" thread female. Package Includes: 1 Piece Water Adapter 1/2" to 3/8" Ball Valve