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Ships within 48 hours · Estimated delivery Aug 30 - Sep 4
SD52 Series Performance Data
remove the two center cones as a unit and reposition the six screws
Hinged removable door with hinges parallel to the longest dimension
One piece curved frame with gasket fits flush to spiral pipe
Please contact us for a quote on optional Stainless Steel Construction or Fractional Sizes
4 1/4" Vertical Mount Fire Damper 2633-24X18 Residential Registers & Grilles SD52 Series Performance Datah3. 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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