You can also Google ,Delta T and Livos.They make marine ventilation systems.Which includes fans ,vents filtration etc.Livos Technologies www.livostech.com/ Delta T Systems Engineered Marine Engine Room Ventilation www.deltatsystems.com/
Ron and MD! thanks. I know Lou Personally. So ok with that. Saw some pics of a plactic type vent that I like in one of these threads so i guess, as this will be inside cabin, I'd like something other then Metal.