Surmeny Marine 2 Pack of 4 inch Cabin Ventilation Plate Vent Butterfly Air Vent Gill Plate with Side Knob 316 Stainless Steel Application: ? Adopting 4 drill holes, this Ventilation Sheet is easy to install. And it is adjustable according to your needs as it comes with a side knob. Suitable for related vents in boats, marine, yacht, caravan, home,barbecue barrel, fire barrel, smoker, boat, camper, garden shed and garage. Features: ? Appearance gloss - This ventilation panel has a very glossy appearance to make your boat more beautiful. ? The surface is polished by high-precision mirror, with higher precision, brightness and polishing degree. The reflection is clear and visible. ? Its smoothly polished Stainless Steel for maximum corrosion resistance and durability that's makes it great for long-term service. ? It can not only effectively prevent rust and corrosion, but also show high-end atmosphere. ? Without modification and it is not easy to fall off. Repairs can be completed in a short time and hardly require any mechanical expertise. ? Stylish and Modern: With a simple design, this Ventilation Sheet looks stylish and modern, which can keep you safe from mosquitoes and provide fresh air to a room. ? Get the butterfly vents are designed for air circulation in interior. ? Butterfly-shaped vents are installed in the cabin to ventilate the doors, cockpit and cabin. ? Round louver air vent cover is usually used for ship supporting doors, cockpits, cabin ventilation, or for family sheds or other facilities. ? Side Knob Opening Mechanism, Easy to stall,convenience to use. Specification : ? Material: stainless steel 316 ? Diameter:Approx:102mm/4.0inch ? Color: silver ? 100% Brand new. Package included: 2 x Stainless Steel 4" Round Butterfly Vent with Center Knob Shutter Vent

✓Suitable for related vents in boats, marine, yacht, caravan, home,barbecue barrel, fire barrel, smoker, boat, camper, garden shed and garage. ✓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. ✓Diameter:Approx. 102mm/4.0inch;Easy to stall,convenience to use. ✓High-quality materials-Made of stainless steel, high-precison mirror polished surface, corrosion and rust resistance, strong and durable. ✓Designed with a manual handle, you can control the opening and closing of the ventilation flap by rotating the side knob.