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165° standard * All sizes utilize one main curtain stay * Galvanized finish h3
RS34 Series Engineering/Performance Data
904 - Double Deflection Adjustable Aluminum Blade Grille For a 18" x 6" Duct Opening (front blades parallel to shortest dimension)
SUBMITTALS 845 Series Submittal
Negator stainless steel closure springs mounted on spring pin brackets
Parallel Volume Damper Low Leak 3000PLL-46X26 Smoke-Fire Damper 165° standard * All sizesh3. 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
