Screen and four piece plastic tab set.

Hatch:
• Outside of deck flange: 19-5/16" x 19-5/16"

Screen:
• Overall: 17-15/16" x 17-15/16"

1) This is not the original, aluminum framed screen, but a new design that is its replacement. The original design is no longer available.

2) These parts are not stocked in the US. Lead time is about 12 weeks from the UK. Lewmar Size 40 Screen