Midland Metal 61868 Cam and Groove Reducer Coupler, 4 in Type D x 3 in FPT, Aluminum

Cam and Groove Reducer Coupler, Connection Size 1: 4 in, Connection Type 1: Type D, Connection Size 2: 3 in, Connection Type 2: FPT, Aluminum, #3-8 Thread, Additional Information: 2.293 lb Weight