SharkBite 1/2 in. X 3/8 in. Compression Angle Stop ValveWe use high-quality DZR Lead-Free Brass for our 1/2 in. x 3/8 in. Quarter Turn Angle Stop Ball Valve. Used where a water pipe enters a room allowing easy water shut off for maintenance, repair, installing a toilet pipe valve or faucet to your water system with no need to turn off your main supply valve. Our product works with your existing plumbing, is easy to disassemble for changing fittings and can be rotated for easier installation in tight spaces. SharkBite push connect fittings are the no fuss way to fix small leaks or plumb a whole house. Whether you need to repair a broken pipe or plumb a whole house, SharkBite fittings are the push-to-connect solution for leak-free results.