Brass Hose Barb Fitting 3/4 Inch NPT x 1 Inch 

Fitting, 3/4" N.P.T. X 1" hose.

Replaces Osco F68CS.

Fits MerCruiser 4 cylinder 181 C.I.D. 140 H.P. 3.0L and 3.0LX, all models 1990 and up with Vortec style head (log style direct replacement).

Compatible parts:

• MC-1-860235 direct replacement exhaust manifold.
• MC-20-12076 direct replacement exhaust riser.

Manufactured by Barr Marine. Part number 50-512-020.