Sharkbite Straight Stops Combine Push-Fit Technology With A Straight Stop Quarter Turn Valve. This Allows The Valve To Control Water Flow To Household Plumbing Fixtures And Provides Easy Shut-Off Of Water Flow For Maintenance And Repair, If Necessary. These Valves Require No Solder, Clamps, Unions Or Glue. The Push-To-Connect End Allows You To Push On To Copper, Pex, Cpvc Or Pe-Rt Pipe Easily. This Product Can Be Easily Rotated After Assembly For Easy Installation, Even In Tight Spaces.