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904 - Double Deflection Adjustable Aluminum Blade Grille For a 18" x 4" Duct Opening (front blades parallel to shortest dimension)
Nylon bushings for easy adjustment and quiet setting of blades running parallel to shortest dimension
Options Recessed screwdriver operated Opposed Blade Damper
Perforated face grille
Standard Features Double deflection surface mount grille with adjustable airfoil blades Front blades parallel to longest dimension
2" Vertical Mount Fire Damper 2533-10X10 Commercial 904 - Double Deflection Adjustableh3. 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
US$ 60.00
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