Coupler, Connection Size 1: 4 in, Connection Type 1: Type C, Connection Size 2: 4 in, Connection Type 2: Hose Shank, Aluminum, 3.53 in ID x 6.56 in OD x 6.64 in L, Maximum Operating Pressure: 150 psi, Additional Information: 2.34 in Exposed Length, 10.66 in OD Cam Arms Extended, 2.938 lb Weight, HBS 300 Series Stainless Steel Cam Arm