Essential details
Quantity(pieces):1
MOQ:1piece
Lead time:10-25day
Shipping:Express Delivery, Air Freight, Land Freight, Sea Freight
Product Introduction
Metal square-base flange integrated with backdraft damper, made of thick galvanized iron with painted finish for waterproof and rust-proof performance. Pre-drilled square base for easy mounting. Built-in non-return damper blades open under airflow and close automatically when unit stops, preventing back-flow of exhaust air and insects. Available in size 100,150,200. Perfect adapter connecting square mounting surface and round duct for range hood, fresh air unit and exhaust fan, for residential ventilation and commercial HVAC exhaust projects.
Product details