Elbow combines 2 black-water waste tanks or waste pipes into one outlet. (2) 3" Flanges bolt onto black-water valves or sewer pipes. 3" Lug fitting makes it easy to connect to your sewer hose.

Elbow combines your black-water and gray-water waste valves into one outlet. 3" Flange bolts onto black-water valve. 1-1/2" Flange bolts onto gray-water valve. 3" Lug fitting makes it easy to connect to your sewer hose.

Elbow combines waste valves and pipes into one outlet. 3" Flange bolts onto black-water valve. 1-1/2" Flange bolts onto gray-water valve. 2" Hub slides onto sewer pipe. 3" Lug fitting makes it easy to connect to your sewer hose.