Apollo XHS Series 14-5/8"D x 16"P RH Rotation 4-Blade Stainless Steel Thru Hub Exhaust Propeller by Michigan Wheel. Standard 4-Blade Recommended Boat Applications: Aluminum Consoles, Bay Boats, Walleye Boats, Offshore Singles, Offshore Duals, Sportboat Singles, Sportboat Duals, Skiboats. The Apollo 4-blade propeller is designed to improve hole shot on heavier loads. This propeller is idea for pulling/towing in water sports. High performance blade geometry, high luster finish, and utilization of our XHS Hub Kit makes the Apollo 4-Blade the perfect propeller for a wide range of boats. Apollo propellers are highly polished, ultimate performance, stainless steel wheels.