XS Scuba 1/2" Male to 3/8" Female LP Adapter.

Features: 

• This adapter allows the connection of a standard low pressure regulator hose (3/8”-24) into a large size regulator first stage low pressure port (1/2”-20)
• Brass construction with black chrome finish
• Low pressure use only - below 200 psi
• Factory cleaned - Viton o-ring