316 Stainless Steel Butterfly Vent with Side Knob for Boat RV Hull Caravan BBQ Damper Smoker Shed Stove Product Description Material:This side knob butterfly vent is made of high quality 316 marine grade stainless steel, anti-rust, corrosion resistant, practicl and is suitable for use in salt water environment. Diameter of the vent:5″(125mm); 6’’ (150mm) The surface is polished by high-precision mirror, with higher precision, brightness and polishing degree. Suitable for related vents in boats, marine, yachts, smokers, caravans, homes, ovens, test chambers, and high-temperature boxes to control airflow. Model Size A B C D weight SM1702-5 5’’ 125mm 81.5mm 3.5mm 3mm 100g SM1702-6 6’’ 150mm 98.5mm 3.5mm 3mm 146g
