Heart of Gold is out of the water for 2010

Garboard Drain Plug info

Collecting info for one of my off season projects:

Perko UL listed Garboard drain plug (with some dimensions) Why don't manufacturers post dimensions with their product info? I have to call to see if this will fit.
SeaSense one way plug
JD ordering page for Perko Garboard Plug (no backing plate)
more Perko Garboard plugs