[abl1111]

Depends on the year boat, I think. My '75 Tsunami uses only the SeaDog brand that you can get at West Marine.

But no other louvered ones, even though they look almost identical, fit correctly...

I buy 3-4 at a time. The louvers seem to stick out beyond the metal frame and get busted up every season from various trailering and dock 'touches' !

Good luck...