MEC Gas Fill Check Adapter Fitting 1-3/4 in. F x 1-3/4 in. M

These adapters are intended to be attached to the LP-Gas delivery truck hose outlets. They feature minimal ow restriction which allows for fast delivery while providing an integral check valve to prevent further product loss if the tank fill valve fails to close. In the event the tank fill valve should fail, leave the fill adapter connected to the fill valve and disconnect the filler hose end valve. Then place the filler valve cap onto the fill adapter. The tank fill valve should be repaired immediately.|ME570, ME572, ME574, ME578 shortest overall height in the industry allowing adapters to fit inside tank hood|1-3/4 in. filler valve F. Acme connection|1-3/4 in. hose end M. Acme connection|Standard handle style and brass construction