Product Specifications Interface Outer Diameter: 73 mm / 2.9 inch Diagonal Mounting Hole Distance: 88 mm / 3.5 inch Distance Between Adjacent Mounting Holes: 43 mm / 1.7 inch Base Outer Diameter: 98 mm / 3.9 inch Color: Grey Material: Galvanized Iron Packing List: 1 x Duct Connector Key Benefits and Features Durable galvanized iron construction offers resistance to corrosion, extreme cold, and temperatures. Strong structural integrity prevents deformation over time, ensuring longterm reliability. Predrilled screw mounting holes allow fast and secure installation directly onto walls, ceilings, or other surfaces without extra drilling. Smooth flange surface enables a secure and efficient airtight connection to ventilation ducts. Compact and precise design ensures compatibility with various duct sizes within listed dimensions. Function and Compatibility Designed for connecting air ducts to ventilation systems with stable and secure mounting. Compatible with common circular duct fittings of matching diameters. Suitable for installation in residential, commercial, and industrial environments requiring efficient airflow management. Practical Applications 1. Home ventilation installations, such as connecting ducts to kitchen exhaust fans or bathroom vents for improved air circulation. 2. Garage or workshop setups requiring secure duct connections to remove fumes or dust. 3. Factory or warehouse air systems where durable, temperatureresistant duct fittings are for reliable operation. Instructions for Use 1. Position the flange on the desired surface, such as an air inlet, air outlet, wall, or ceiling. 2. Align the predrilled screw holes with the mounting surface. 3. Secure firmly with screws for a stable connection before attaching the ventilation duct. This duct connector offers dependable performance, easy installation, and enduring resistance to environmental wear, making it a practical choice for a wide range of ventilation setups.