Be advised that Marinco now makes a day/night fan as an alternative to the Nicro.
https://www.amazon.com/nicro-Stainless-Steel-Night-Plus/dp/B01G1YYDOC http://www.marinco.com/en/n20803s A few things to know about each. Nicro - the old style Nicros were fairly low. If the fan was mounted forward, sheets would generally pass easily over the fan. The new Nicros are higher and have a vertical portion to the side. Sheets will hang up on the vertical portion. The old Nicros were simply inserted into the deck fitting. They could be secured with a trim ring from below. The new fans are screwed to the deck fitting from above. The new deck fitting is slightly different in size from the old fitting so you may have to modify the hole. Marinco - Very vertical on the sides. I suspect sheets will hang up on this fan. It has a nifty night light. It also seems to protrude more into the cabin/head than the Nicro. Before you buy, be sure to look hard at the fitment for this vent. It could be a head banger. There are several other solar vents. Pactrade, Solatron, etc. Do the research. Dennis C. Touche' 35-1 #83 Mandeville, LA
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