External Thread (Male Head): 1/4 SAE Thread, Internal Thread (Female Head): 21mm. These tank adapters provide a tight, secure, leak-free connection. We'd like to settle any problem in a friendly manner.
Brass Tank Adapter Vacuum Pump Adapter Fittings to 1/4
Brass Tank Adapter Vacuum Pump Adapter Fittings To 1/4''
Brass Tank Adapter Vacuum Pump Adapter Fittings To 1/4'' SAE
Brass Tank Adapter Vacuum Pump Adapter Fittings W21 To 1/4''
Brass 1/4 SAE to 1/2 ACME Air Conditioner Refrigeration Tank Adapter Fitting
