This PSI screw blower snout coupler allows the use of a 7.090" PSI blower snout to be used on a PSI B rotor marine screw blower. Coupler is made from billet heat treated steel and is twenty eight spline to work with the PSI blower snout assm.
Fits B, C or D rotor PSI screw blowers and if the racer needs a blower snout assm. to go with the coupler check out part number #1400-0061A.