4 1/4" Vertical Mount Fire Damper 2601-28X28 Smoke-Fire Damper Standard Features *Surface mount diffuser

Standard Features *Surface mount diffuser * Nylon bushings for easy adjustment and quiet setting of steel blades * Countersunk mounting holes for flush appearance with color matching Phillips posi-drive screws * Single deflection diffuser with adjustable steel blades * Steel blades are parallel to longest dimension * Allows 2-way air deflection on one plane * Soft White Options * 931 O - with recessed screwdriver operated opposed blade damper * 1331 and 1332 Series - stainless steel single deflection * Tamper proof screws * Standard Color or Design Color Finish available on this product

904 - Double Deflection Adjustable Aluminum Blade Grille For a 20" x 14" Duct Opening (front blades parallel to shortest dimension)

Mill finish

Standard Features * 2x2 panel with fixed 22 gauge steel perforated face * 7/8" fiberglass back (R4 value) * Pattern controllers can be adjusted to 1

4 1/4" Vertical Mount Fire Damper 2601-28X28 Smoke-Fire Damper Standard Features *Surface mount diffuserh3. 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