Replacement hatch gasket for Lewmar Ocean hatches used on Catalinas until the early 90's.
• Catalina 42, early models
There may be other instances where this hatch is used. It is also possible that not every boat described above used this hatch. Please use the dimensions above and the photos below to verify which hatch is actually installed on your boat. Lewmar Size 40 Ocean Series
This gasket is designed to fit a hatch with the following dimensions:
• Outside of deck flange: 485mm x 485mm (about 19-1/8" x 19-1/8")
• Cut out in the deck: 416mm x 416mm (about 16-3/8" x 16-3/8")
• Cutout radius: 40mm (about 1-9/16")
• Height off of deck: 39.5mm (about 1-9/16")
Please note that these hatches are built in England and made to metric system standard dimensions. All Imperial equivalents are approximate.