Mermaid water circulating pump

[Mickeyrouse]

Haven’t changed (because I haven’t run it in years) the water circulation pump on my Mermaid 16K btu air conditioner. Because the handle twisted off the ball valve on the inlet side while closed, I can’t tell if the pump works. I can plumb around the valve, but I want to change the pump regardless- it’s 18 years old, and even if it does work, can’t imagine that it will for long.
So does anyone know what kind of pump it is? I know I can probably read it off the label once removed, but I really only want to be in there once.

[Coolerking]

A March 500GPH would be the most likely choice.

[Mickeyrouse]

Thanks- cooler days are before us now.