Features low pressure drop with maximum moisture and acid retention. Hermetically sealed Pouch prevent exposure to dirt and moisture. Complete with gaskets to interchange with other manufacturers' models. 42 cu.-in. cores can be used in most 3 1/2" O.D. flanged shells. 1.58" I.D., 3.12" O.D., 6" length. Higher moisture and acid capacity for systems with excessive moisture due to leaks or ruptures. Universal replacement cores for use in our shells and all other take-apart type filter-drier shells. D-42 filters include one neoprene composite lid gasket and one core gasket.