Pex valve wrench

There is a particular valve (I'm not sure what brand it is; I'm pretty sure it isn't Whale) for opening and closing the flow of water through pex pipes in boats. The valve grip is small and hard to turn, especially with wet hands. This wrench slips over the face of the valve grip and provides more leverage.

I have included the .stl file ready to be sliced, as well as the .dxf CAD file in case you want to make changes to it.