Vetus 'Chinook' cowl ventilator. The Vetus Chinook cowl vent is a traditional-style silicone cowl ventilator suitable for ventilating cabins, engine rooms etc. Deck ring & nut (code: CHINOOK): the cowl ventilator is fixed to the deck by a deck plate (which is screwed or bolted to the deck) and a knurled base ring which can be secured by hand.
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