RAPIDAIR 50100, 1/2″ FITTING X 3/8 NPT THE RAPIDAIR 1/2 IN. TUBING X 3/8 IN. MALE NPT ADAPTER FITTING, FEATURES A PUSH TO CONNECT STYLE TO MAKE FAST AND EASY CONNECTIONS. THERE IS NO GLUE, SOLDERING OR CRIMPING NEEDED. SIMPLY CUT THE TUBING TO LENGTH AND INSERT THE TUBING INTO THE FITTING. TUBING CAN BE RELEASED BY PUSH BUTTON IF DESIRED.