Low Pressure (LP) 1/2 inch Male to 3/8 inch Female UNF adapter.

For those regulators that have 1/2" Female UNF ports, now you can use this 1/2" Male to 3/8" Female UNF scuba hose adapter (WMD-UA-7 | AHA-4)to connect any hose with a 3/8" Male UNF fitting.