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listed Fire-Resistance Diffuser * TVB - Thermal Vapor Blanket * Square collar Additional Drawings * 825 MA
round collar only) * 830 OR - factory installed opposed radial damper (sizes 6"-14") * 830 FR - U
One piece steel frame
Stamped from cold roll steel
Hand operated level for easy filter access and cleaning
Adjustable Diffuser 951-8X6 past 12 months listed Fire-Resistance Diffuser * TVBStandard Features Adjustable steel roll formed blades oriented for 1 or 2 way airflow pattern Blades parallel to shortest dimension One piece stamped steel frame on most common sizes, alternate frame is extruded aluminum with signature line marks Lever operated steel multi shutter damper Designed for ceiling or sidewall applications Nylon bushings on adj. blades prevent metal on metal rattle Countersunk mounting holes for flush appearance with color
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