Marshall Excelsior MEC female 1"-20 x male 1/4" threaded. If you want the best and safest gas connections, Marshall Excelsior is the brand you want. Lifetime warranty!! Warranty exchanges are instantly done by us. No dealing with the manufacturer.
This gas regulator adapter allows disposable 1-lb propane bottles to be connected to the regulator on a grill or appliance. The 1/4" male threaded end fits all inlets on standard low pressure regulators. The female #1-20 end fits all disposable bottles.