CAMLOCK COUPLING & GROOVE AND PIN LUG COUPLING - PIN LUG HOSES (PIN LUG COUPLING AND PIN LUG HOSES SHANK) We are offering pin lug coupling, pin lug hose shank, suction hose coupling. sizes: 1-12" to 6"parts: full set, female set, male set,brass nut body material: aluminum body with brass nut aluminum brass pin-lug couplings are built of lightweight aluminum with brass pin-lug nut for long lasting durability. Pin-lug style assures strength and reliability. Can be used with hoses capable of handling water or other liquids, providing increased adaptability. Will require clamps to attach hose. Available in sizes 1-12"-6" as female, male and coupling set.