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Performance Data With Opposed Blade Damper
425 Series Engineering/Performance Data
inner dimension and outside dimension available * Available in continuous lengths with butt joints * Tamper proof screws * Standard Color
Standard Features * 2561 - Square or rectangular fire door for vertical mount only
Hinged removable door with hinges parallel to the longest dimension
4 1/4" Horizontal/Vertical Mount Fire Damper 2602-18X18 Smoke-Fire Damper Performance Data With Opposed Bladeh3. Standard Features * 2601 Square or rectangular for vertical mount only. Maximum dimension 60x60 single, 120x120 multiple. * 2602 Square or rectangular spring actuated (6) for horizontal or vertical mount. Maximum dimension 60x60. * UL and California State Fire Marshall approved * 4 1 4" standard frame style * Interlocking steel roll formed blade (3) with roll formed frames (1) * Blade lock (5) * Damper manufactured from corrosion tested galvanized
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