More About Perforated Supply Diffusers, Adj. Deflector (PDSD Series)
The PDSD Series Perforated Supply Diffusers with an Adjustable Deflector by Hart & Cooley provide a perforated steel face, face adjustable deflectors, formed steel, black back panel, fiberglass insulation blanket with foil vapor barrier to minimize condensation, insulation prescored to accommodate collar size desired, and utilizes a butterfly damper (3800 Series) inserted in collar. They accept unique snap-in collar (5400 Series) 6" to 12"- order separately. Available in 14" fixed collar (PDS14). Damper adjusted through diffuser face to allow proper air balancing. Come in a bright white finish.