Evinrude SST (Stainless Steel Tough) outboard boat propellers.
Genuine Evinrude Johnson E-Tec SST boat propellers.
See also stainless steel models and part numbers for:
Viper, Raker, Rebel, Rogue and Renegade Bass.
A SST prop will last longer than an aluminum prop, plus offers greater performance - 5 times stronger than an ordinary aluminum prop.
Has a "Thru-hub" exhaust and 3-blade painted stainless steel design.
Achieves higher top end speed. Highly recommended for the serious boater.