B300SS54S by Jason Industrial | 3" Safety-Cam Cam and Groove | Part B | Female Coupler x Male NPT Thread | 304 Stainless SteelApplications: Air, Chemical, Food, Material Handling, Mining, Petroleum (including Fracking), Steam, Water Benefits: No more dangling arms, no more snagging of the assembly Prevents any disconnection during the transfer of solid or liquid products Handles any rugged use. Resists disconnection if the assembly is being dragged Easy to open just pull down on the cam arm ring to disengage the locking mechanism Material Features: Sizes 3 4", 1", 1 1 4", 1