one unfortunate possibility is that insufficient air might enter through the vent line

There are no visible exterior screws

Mount in a 1″ ID hole with two #10 fasteners

braided flexible stainless steel supply lines

Imtra Offshore 9-LED Marine Deck Light Ice Maker one unfortunate possibility is thatIn collaboration with the Vision X engineering team, the Imtra Offshore Series Marine LED Deck Lights are specifically designed with the extra protections required to survive life on the open ocean. The stainless steel brackets, copper circuit boards, tinned extra long sheathed cables and marine grade gloss coating are all there to protect the fixture from corrosion and other harmful elements encountered on the water. Additional safeguards such as EMC