TH Marine Louvered Vent Covers provide excellent ventilation while deflecting rain and sea-spray. Vent features a flange molded into part so raw edges of cut are hidden and protected providing a smooth look.
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Fits into 4 inch hole and is 5-5/8 inches overall diameter
How do you attach a vent hose to it ?
I used louvre vent for ventilation of storage cabinet. If I had to get creative I would search for PVC pipe sleeve to extend it through the face plate giving it enough of a shaft and improvise the attachment to a vent hose.
I used it for venting only to the face of the motor well so the bilge could breath I did not hook a hose to it I don't think that is what this part is intended for
Does it come with insect screen?
No it does not come with a insect screen.
what material makes up this vent?
This vent is made with a high-grade plastic.
Basic Cover Fills Basic Hole
I used this cover to replace a missing vent. The fit was perfect even down to the hole pattern.