Hydrus (13 7/8 x 9") Evinrude Johnson RH Propeller, 177201A high thrust prop designed and manufactured to meet the specific performance needs of pontoon boats and work boats. This three blade prop provides an oversized blade area for maximum thrust and stability (it will keep its grip even when most of the weight is near the bow) and aggressive cupping for tight balanced turning. The result? A high thrust prop that bites the water and hangs on tight. Aggressive cupping holds tight in turns Big blade area for