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Hi
i have a 1996 Boston whaler outrage 21 with Mercury Verrado 150 HP 4 strokes.
i need to get a new propeller and i don't know exactly which one to get,

the current one (that i need to replace ) is black max 13 X 16.
when i tried to use the mercury website it recommends a 15X17 propeller.

so, i am a bit confused.
i don't need performance, i want a rotor that will give me a good fuel consumption and will be comfortable.
would love to hear your advise.