New vacuum pump adapter. Has a valve core which can be removed.
R1234YF Vacuum Pump Adapter, Refrigerant Tank to R12 Fitting gold
Vacuum Pump Adapter 1/2" FM ACME x 3/8" M Flare w/ Cap
AC Hose to Vacuum Pump Adapter 1/4" Female to 1/2" ACME Male Mastercool 82634
FJC 6014 Vacuum Pump Adapter ¼ Female to ½ ACME Male
R1234YF Hose to R134a Vacuum Pump Adapter Fitting remplace mt1799
NEW Pittsburgh Vacuum Pump with R134A & R12/22 Connectors - Fast Free Shipping!