For Lewmar Rollstop hatches manufactured from 1986 through 1992. This hatch can be identified by the lack of friction levers and a hinge that clicks into place supporting the lid as several different angles.
Known Usage:
• Catalina 42 (3 ea)

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.

Hatch
• Outside of lid: 12-3/4" x 12-3/4"

Please note that these hatches are built in England and made to metric system standard dimensions. All Imperial equivalents are approximate

Since Lewmar is a British company, all of their products are metric. The fractional dimensions provided are the nearest equivalents. lemar Size 10 Rollstop