This is an automatic shut off fuel nozzle with 1 inch inlet and outlet mostly used for pumping diesel fuel It includes a locking trigger for easy refueling This is not recommended for gravityfed systems because these require at least 60 PSI to function properlyFeaturesDual mode operation includes a manual automatic shutoffHeavyduty diecast aluminum bodyThermoplastic trigger and trigger guardNozzle body protected by a green vinyl coverIncludes locking trigger for easy refuelingSpecificationsInlet 1 NPTOulet 1 NPTNot recommended for gravityfed systems, these require at least 60 PSI to function properly