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Ships within 48 hours · Estimated delivery Nov 16 - Nov 21
3 or 4 way air patterns from face * One size fits 6" thru 16" (collar by others) * Soft White
" Spiral pipe diameter must be 4” larger than width of grille
Countersunk mounting holes for flush appearance with stainless sheet metal screws
PERFORMANCE DATA 915 Series Engineering/Performance Data
904 - Double Deflection Adjustable Aluminum Blade Grille For a 24" x 8" Duct Opening (front blades parallel to shortest dimension)
Parallel Blade Volume Damper 3000P-60X16 Accessories 3 or 4 way airh3. 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
