MARSHALL EXCESS FLOW P.O.L. SPUD AND NUT
The P.O.L. Adapter ("Spud & Nut") is required to convey LP gas to the regulator. Excess-flow type, required for use on RVs, restricts the flow of escaping gas in the event the regulator is broken off at the P.O.L. However, it is not designed to detect a leak or totally shut off system in the event of a leak or failure of the regulator. 1/4" MPT x excess flow P.O.L. 7/8" hex nut.