This is an improved screen for the size 1 Lewmar opening port, new or old standard. This port's lens measures 5" x 12" and has dogs which rotate closed with a motion like turning a key in a lock. This port was produced and used from 1982 onward.
This new screen is improved in several ways:
The dimensions of the screen are:
Top to bottom: 5-1/4"
Fore & aft: 12-1/8"
For identification purposes, the dimensions of the size 1 port are:
Top to bottom: 191mm (7.52")
Fore & aft: 367mm (14.45").
Two of this size port were used in the Capri 26, Catalina 27 (one customer with a 1988 C-27 reports his boat used two size 0), Catalina 270, Catalina 28, and Catalina 37. Four were used in the Catalina 30 and Catalina 38. Seven were used in the Catalina 320, and eight in the Catalina 34. The Catalina 36 and some Catalina 42's used six. These portlights were in production from 1982 through 1988.