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SD34 - Transition Box Spiral Pipe Grille (DOUBle Deflection)
Low profile design for tight mechanical areas
Perforated face grille
904 - Double Deflection Adjustable Aluminum Blade Grille For a 36" x 24" Duct Opening (front blades parallel to shortest dimension)
2" Horizontal/Vertical Mount Curtain Fire Damper 2502-20X18 Residential Registers & Grilles SD34 - Transition Box Spiralh3. Standard Features * 2501 Square or rectangular for vertical mount only. Maximum dimension 48w, 49h. * 2502 Square or rectangular spring actuated (6) for horizontal or vertical mount. Maximum dimension 41w, 36h. * UL and California State Fire Marshall approved * 2" thinline frame * Interlocking steel roll formed blade (3) with roll formed frames (1) * Blade lock (5) * Damper manufactured from corrosion tested galvanized mild steel (G 90) * Self
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