Duct access doors are easy to install and provide an economical means of access to the inside of ductwork. The fold-over tabs lock the frame into the opening. Sturdy double-wall insulated doors and gasketing prevent air leakage and heat transfer. Standard doors are suitable for low-to medium-pressure duct systems up to 4.5″ w.g. while high-pressure versions are rated up to 10″ w.g.
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|Manufacturer||C.L. Ward & Family, Inc|