Choose the model Propeller shaft olive anode 19 mm (3/4") Propeller shaft olive anode 22 mm (7/8") Propeller shaft olive anode 25 mm Propeller shaft olive anode 25.4 mm (1") Propeller shaft olive anode 28.6 mm (1" 1/8) Propeller shaft olive anode 30 mm Propeller shaft olive anode 31.8 mm (/1" 1/4) Propeller shaft olive anode 35 mm (1" 3/8) Propeller shaft olive anode 38 mm (1" 1/2) Propeller shaft olive anode 40 mm Propeller shaft olive anode 44 mm (1" 3/4) Propeller shaft olive anode 45 mm Propeller shaft olive anode 50 mm Propeller shaft olive anode 50 mm (2") Propeller shaft olive anode 57.15 mm Propeller shaft olive anode 60 mm Propeller shaft olive anode 63 mm (2" 1/2) Propeller shaft olive anode 65 mm Propeller shaft olive anode 70 mm Propeller shaft olive anode 75 mm Propeller shaft olive anode 80 mm Aluminium propeller shaft olive anode 22 mm (7/8) Aluminium propeller shaft olive anode 25 mm Aluminium propeller shaft olive anode 30 mm Aluminium propeller shaft olive anode 50 mm (2)