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Yep a garden variety dual action pump. Be wary of the off shore versions ( in my experience) rubber valves not so good. 337 Linc and big Ford trucks attach these
pumps with 3/8 dia fasteners, Ford and Merc use 5/16 fasteners. There are various versions with different inlet and outlet threads and locations , ditto for the vacuum
portion. Parts get so easily mixed.
Charlie ny