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Ships within 48 hours · Estimated delivery Aug 16 - Aug 21
Standard Features * 2533 - Square or rectangular for vertical mount only
Reinforced welded core and extra supports for heavy duty application
Nylon bushings on adjustable blades to prevent metal on metal rattle
Ceramic fiber blade insulation with fiberglass cover*
1600 Series Submittal
4" Horizontal/Vertical Mount Fire Damper 2634-28X12 Step Down Ceiling Diffuser Standard Features * 2533 -h3. 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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