Stiletto Triad II Propellers, 3 blade, 10.5 dia x 13 pitch (ST12313)
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Stiletto Triad II Propellers. An exciting new level of performance for 30-70 hp outboards. Durability, higher top speed, and an increase in fuel economy highlight this series of 3-blade props. Mercury/Mariner: For engines: '77 and later, 30 hp with thru hub exhaust.