STREAMLINE SHAFT ANODE ZINC SHAFT SIZE: 1 1/2" DIA. LENGTH: 2 5/8" OUTSIDE DIA.: 2 3/4" WEIGHT: 1.8 LBS EASY SIZE VERIFICATION INSIDE AND OUTSIDE EASY INSTALLATION - DEEP SLOTTED S.S. MACHINE SCREWS FOR MAXIUMUM TORQUE INNOVATIVE O-RINGS KEEP SCREWS FROM FALLING OUT