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Ships within 48 hours · Estimated delivery Sep 30 - Oct 5
Concealed mounting holes
1” rim size (2” larger than nominal duct size / order size)
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2x4 * Soft White
Maintains horizontal airflow pattern
4" Horizontal/Vertical Mount Fire Damper 2634-20X8 Accessories Concealed mounting holesh3. 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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