Mastercool MAS85530 R134A/R12/OIL Side Entry Can Tap Valve

Like Having Three Tools In One The Side Entry Can Tap Will Work On All R134a (2 7/8 Inch), R12 (2-1/2 Inch) And Oil Charge (2 Inch) Cans. 1/2 Inch Acme-m And 1/4 Inch Fl-m Fittings With An Internal Check Valve To Prevent System Backflow. The Pliers Style Grip Is Easy To Use And Has A Positive Locking Latch To Insure Secure Engagement.