Features: Made of high-quality materials, Good quality and easy installationClean the copper pipe with a wire brush or emery clothAttach it to the smoothest part of the copper pipe to ensure a sealThe sealing area of the valve is 50 times that of the O-ring. In addition, its sealing force is 180 inch pounds, the pressure test is 250°F, and the torque test is 500 pounds.preservativeProduct parameters:Model: BPV31material: metalColor: silverReplacement part numbers: AP4502525, BPV31D, GPV14, GPV31, GPV38, GPV56, MPV31. Compatible with 1/4 inch, 5/16 inch, 3/8 inch outer diameter pipe. Package list:1 *BPV-31 bullet through faucet valve kitNote: 1.The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.2.Please allow slight manual measurement deviation for the data.