Five Oceans Diesel Deck Fill w/Hinged Cap, 1 1/2" Hose FO-1796 MOLDED PALSTIC flip top deck diesel fill with 1 1/2"(38mm) hose HINGED FLIP TOP cap makes deck plate key obsolete and eliminates cap loss SUITABLE for Boats, caravans, campervans, trucks,tractors,trailers, etc