Braze On Self Piercing Copper Saddle Valve for 1/2" OD Tube (4 Pack)

Braze-on self-piercing copper saddle valve for 1/2" tube The M Series is the first and best braze-on, self-piercing copper saddle valve. It is widely used and easily installed on a charged line. After brazing the saddle portion onto line, the steel pin with valve core penetrates the line and is locked into place simply by tightening the cap.