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NGD - Narrow ceiling grid dimples for 9/16" T-Rails
904 - Double Deflection Adjustable Aluminum Blade Grille For a 18" x 4" Duct Opening (front blades parallel to shortest dimension)
3 cone steel diffuser with hinged core for easy duct access
Standard Features * Fixed bar blades parallel to 1st dimension given *
2" Vertical Mount Fire Damper 2533-48X10 Commercial NGD - Narrow ceiling gridh3. Standard Features * 2533 Square or rectangular for vertical mount only. Maximum dimension 48w, 41h. * 2534 Square or rectangular spring actuated (6) for horizontal or vertical mount. Maximum dimension 41w, 29h. * 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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