Periodic inspection and testing of fire and smoke dampers and detectors in ductwork is a standard safety procedure. Easy access to these devices as well as providing a means of access for duct cleaning. Duro Dyne Access Doors incorporate an integral frame which readily fastens to the duct work as well as a camlock latching system for easy entry.
Duro Dyne® Insulated Access Doors Hinged
- 3-1/8 in x 3-1/8 in Cut Hole in Duct
- 4 in x 4 in Door Size
