• Three point sealing (1) Needle-type valve (2) gasket and (3) check valve prevents leakage Neoprene seal withstands temperatures near 300 deg F

Fast, easy, secure installation. Provides access to line at any point for charging, testing or evacuation. 2 valves cover 3/16 to 5/8 in OD tubing. Has depressor valve and needle valve shut-off. Valve clamps on tubing line with two captive slotted-head screws positive built-in mechanical stop for each tube size eliminates tightening guesswork. To pierce tube, thread down the combination l/4 in flare port, stem and needle using knob furnished or a suitable wrench, back off stem and connect depressor-type hose for testing or charging. After service is completed valve is closed and left on line for future service. Dust cap provided.