This access door was developed to provide easy access into air ducts and units, and to provide a solid, leak proof door that is simple to install with self-adhesive template for the exact size of duct opening required. The insulated door has a smooth interior finish and has been tested to +20” W.G. and -10” W.G. with no leakage noted. This access door is UL classified FHC 25/50.
Details: to fit 10" - 11" Round Duct