Through hull for bilge pump

[bensolomon]

Good afternoon. Does anyone know the size of the through hull for the main bilge pump on a 1990 Hunter legend 37.5? I had to leave the boat to catch a train and as I was leaving noticed the mushroom was missing from the outside of the hull. I couldn't go back to measure since I was late, and I want to order the appropriate part so I can install it ASAP. The boat is 4 hours away by train.

Worst case scenario, I will buy a few different sizes of less expensive through hulls so that I can fix the problem and then order a marelon or stainless one that I know will fit. I was hoping to do the job just once.

Thank you in advance.
Ben

[GordMay]

The through-hull will likely be sized to match the bilge pump discharge port.
ie: Rule bilge pumps typically fit either 3/4" (<800 GPH), or 1-1/8" (1000+ GPH) hose.

[bensolomon]

Thank you!!! That helps tremendously!