The PowerTech OFS is a 15
reducing fuel burn in the rpm range where boaters operate most of the time
Enhanced blade cup for improved planing performance and fuel economy
Mariner 20-25 HP Outboards (10-Tooth Spline)
Great all-purpose propeller
PTR 4-Blade (13.5 x 17") PowerTech RH Propeller, PTR4R17P Rubex S3 The PowerTech OFS is aPowerTech PTR 4 Blade Propeller Th PowerTech PTR 4 Blade Propeller features a 13. 5" diameter with high rake angle, delivering superior lift and grip for outstanding performance. This propeller is engineered for high performance applications, making it an excellent choice for bass boats, bay boats, center consoles, and flats boats. High rake angle Superior lift & grip Great for high performance Bass boats, bay boats, center consoles, & flats boats