The AJB type access doors are designed for use on rectangular ducts.
Specifications
Manufactured from galvanized steel sheets. The cover is filled with glass wool. The installation is easy: the frame has peripheral tabs, which are hammered on the inside surface of the ductwork. Air leakage tightness is enhanced by the gaskets between the frame and the duct; and between the cover and the frame. The access door cover is secured in place by a cam-lock mechanism.
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