Known Usage:
• (4 ea) on the Catalina 320
• (6 ea) on the Catalina 34
• (4 ea) on the Catalina 36
• (2 ea) on the Catalina 387 (aft, 1 in head, 1 in aft cabin)

The quantities used on each boat may vary with the year.

There may be other uses we are not aware of. They were also not used every year the boat was produced.

Port:
• Outside of mounting flange (measured on the outside of the boat): 367mm x 191mm (about (14-7/16" x 7-1/2")
• Cut out size: 347mm x 171mm (about 13-5/8" x 6-3/4")

Lens:
• Height: 135mm (about 5-1/4")
• Length: 310mm (about 12-3/16")
• From the outside surface of the lens to center of the hinge axis: 1.14" (about 29mm)

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

1) Boats built before 2006 used several different aluminum framed versions.

2) Depending on the size of the port, may include tape to install between the frame and the gasket as shown in the attached installation drawing in "Technical Support" below.

3) The related installation instruction drawing shows protrusions in the gasket where it interfaces with the lens and appears to be for an earlier version of the gaskets as the currently supplied replacement gaskets do not include those features. Lewmar Size 1RE Stainless Steel Frame