Autostream S1 Zinc Propeller Anode Autostream S1 Zinc Propeller Anode Replacement S1 and S2 series propeller anode 10mm ID - Stainless insert58mm - Width OD37mm - Height480G - Weight Product Information: For use in salt water Alloy is manufactured to exceed or meet US Military... MSRP: Was: Now: $58.94 Add to Cart