Model 900D Shown
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Radial Opposed Blade Damper
Aluminum neck-mounted damper for the 900 series round ceiling diffusers, designed to give jam free operation. Units shall include a removable damper operator knob constructed of high-impact nylon, and shall prevent tapering after the outlet is balanced. Supplied with mounting hardware.
For attachment to Model 900
2 butterfly style blades for 6" - 12" sizes
8 blades radial style for 14" size
Blades adjusted through diffuser face
Damper supplied with mounting hardware
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