Type DA, 3″ Female Coupler x 4″ Male Adapter, Aluminum, Camlock DA3040AL
PN- DA3040AL. 3″ X 4″ PART DA REDUCER COUPLER x ADAPTER. 3″ FEMALE COUPLER x 4″ MALE ADAPTER. All products represented by Mainland Valve & Fitting, Inc. that is noted as surplus are surplus and are not represented by any manufacture.