2 Pack of 4 inch Cabin Ventilation Plate Vent Round Butterfly Air Gill with Side Knob 304 Stainless Steel for Marine Boats Accessories

Get the butterfly vents are designed for air circulation in interior；With neat finish and simple design, this Ventilation Sheet can even be used as a decoration.

Side Knob Opening Mechanism, Easy to stall,convenience to use.Designed with a manual handle, you can control the opening and closing of the ventilation flap by rotating the side knob.

Suitable for related vents in boats, marine, yacht, caravan, home,barbecue barrel, fire barrel, smoker, boat, camper, garden shed and garage.

High-quality materials - Made of stainless steel, high-precison mirror polished surface, corrosion and rust resistance, strong and durable.

Diameter:Approx. 102mm/4.0inch;Thickness: 1mm 0.03" (0.8mm )