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sizes T-20 Tamper Proof Screws SUBMITTAL 903 Series Submittal PERFORMANCE DATA 903 Series Engineering/Performance Data REVIT FILES Surface Mount Aluminum Supply Diffuser Double Deflection front Long with Damper Surface Mount Aluminum Supply Diffuser Double Deflection front Long
" Spiral pipe diameter must be 4” larger than width of grille
1-27/32” x 11/32” slots
Countersunk mounting holes for flush appearance with color matching Phillips posi- drive screws
Parallel Blade Volume Damper 3000P-50X46 T-Bar sizes T-20 Tamper Proof Screwsh3. 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
