I believe the lewmar 40 series is the replacement. They also make a replacement insert and seal I believe. Bomar also makes a replacement hatch as well. I believe the opening is 19.5 X 19.5 or something close to that.

-Jason

:: does anyone have a replacement hatch cover? Does anyone
:: know what Lewmar hatchpart number is on our boats? Does
:: anyone know of someone that repairs cracked (not crazed)
:: hatch covers?
::
:: Larry