Camlock Fittings SNAPLOCK® Camlock Coupling, Type B, Fitting/Connector Type: Coupling, 2-1/2 in Nominal Size, Cam and Groove Female Coupler x MNPT, 150 psi, Aluminum, Gravity Casting
Type B couplers are normally used with Type F adapters, but can be used with Type A and E adapters and DP (dust plug) of identical size.