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Countersunk mounting holes for flush appearance with stainless sheet metal screws
T-Bar Fixed Core Step Down Diffuser
AA-HVL Series Submittal
425 Series Engineering/Performance Data
Standard Features * 3-way diffusion for draft-free heat or air conditioning * For ceiling or sidewall applications * All component parts
Parallel Volume Damper Low Leak 3000PLL-72X66 Smoke-Fire Damper Countersunk mounting holes for flushh3. Standard Features * 16 gauge galvanized channel frame * Parallel blades are cee stiffened 16 gauge galvanized for strength and stability * Blades pivot on non metallic celcon bushings * 1 2" square zinc plated steel pivot pins * 1 2" square zinc plated steel adjustable operating shaft extending up to 4" beyond the air control frame * Single blades on dampers with a height of 12" or less * Mill finish h3. Options * 3000 PLL Low Leak Air Control
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