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Air Patterns
Ceiling opening must be 4” larger in length and width than the nominal duct size
945 Series Submittal
Individually welded 14 guage diffusion bars
4" Horizontal/Vertical Mount Fire Damper 2634-36X18 Smoke-Fire Damper Air Patternsh3. Standard Features * 2633 Square or rectangular out of airstream fire damper for vertical mount only. * 2634 Square or rectangular Spring actuated (6) out of airstream fire damper for horizontal or vertical mount. * UL and California State Fire Marshall approved * 4 1 4" standard frame style * Maximum dimension 60w, 52h * Interlocking steel roll formed blade (3) with roll formed frames (1) * Blade lock (5) * Damper manufactured from corrosion
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US$ 14.99
US$ 10.80
