Converts first stage outlet from 1/2" Male to 3/8" Female
Enables current Beuchat VX10 (1/2 inch primary port only) and older style US Divers (1/2 inch) or older style DACOR (1/2 inch) regulators to be compatible with current (3/8 inch) second stage regulator connections
Converts first stage outlet from 3/8" Male to 1/2" Female
Enables current first stage regulator ports (3/8 inch) to be compatible with current Beuchat VX10 (1/2 inch) primary regulator hose and older style US Divers (1/2 inch) or older style Dacor (1/2 inch) regulator hoses