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Alan
My Wife and I just bought a Catalina 25 that has two Lewmar brand portlights forward. On the inside is a plastic trim ring for each around the port each has become sunstained brown. There are NO replacemets available from Lewmar. I have tried the following products to clean off the brown: Simple Green, SOS pads,Clorox,Orange Clean,Westleys belche white,and Oxy Clean. I have run out of ideas. Anyone know of replacement parts source or a better cleaner? Thankss for your help! Alan 87 Catalina TR/SK