The door hinge fixing louver is to add a frame and a special door hinge on the basis of the fixed louver, and the inner casing and the frame are relatively separated, and are connected by a special door hinge. Lightly pull the spring door lock on both sides of the inner liner. The inner liner opens like a door. It is often used with the filter net. It is mostly used for return air and is convenient for cleaning the filter net.

Structure: Blade fixed type.

Features: The inner tuyere can be opened for easy removal of the filter.

Can be attached: Filter, herringbone regulator.

Specifications: Match the design size.