ACME 912 3 Blade 13" x 10.5" Propeller
A technician at ACME recommended this for my 1986 ski nautique 2001. If you are looking for the absolute maximum ballast potential this is the prop for you. Amazing improvement over the stock 13x13 and the tech at acme recommended it over the popular ACME 542. The older nautique motor with a 1:1 drive has a hard time dealing with a lot of ballast, and you need as much prop as possible to compensate.