Floor Diffuser
(6)
Sidewall Register
(16)
Ceiling Diffuser
(20)
Grille
(8)
T-Bar Diffuser
(12)
Accessories
(7)
Clamp
(23)
Door Vent
(2)
An air return filter or air supply grille assembly having an interchangeable perforated face plate hingedly attached directly to a molded fiberglass plenum. The molded fiberglass plenum has a preformed recess for receiving and positioning a filter resting on the face plate when used as an air return filter grille assembly. The hinge system for the interchangeable perforated face plate is comprised of a pair of mating half hinges with one half secured to the plenum and the other half secured to each interchangeable face plate. The grille assembly can be mounted and a perforated face plate selected to provide an air return filter grille assembly or an air diffusing supply grille assembly. The air filter grille assembly is constructed to mount easily on T-bar suspended ceilings with the perforated face plate held closed by manually rotatable pawls.
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