Description The Morrison Bros 927-0400AAEVR Dry Disconnect Adapter 4IN Aluminum are designed to connect fuel delivery transport truck hose or nozzles to the fill pipe of an aboveground storage tank. Adaptors are generally mounted to the tank. Key Features Minimizes spills and dripping of fuel at disconnect Compatible with other brands of cam-and-groove style dry disconnect couplers Quick and easy connect and disconnect Compatible with Morrison 735DC dust caps 927 is aluminum 927S is stainless steel