The adapters are a clamp-on 6160-T6 aluminum adapter that attaches directly to fuel pump body with no modifications. The design focus was to allow easy connection to a remote fuel pickup or HydraMat within your tank or fuel cell. The patented design includes o-ring to seal the fuel pump to the adapter. This adapter has a -10 ORB female connection. Four sizes available to fit the following pump styles and models as well as other popular brands of the same size: * Please Note: Fuel Pumps are not included.