4 1/4" Vertical Mount Fire Damper 2633-24X14 Residential Registers & Grilles listed Fire-Resistance Diffuser * TVB

listed Fire-Resistance Diffuser * TVB - Thermal Vapor Blanket * Square collar Additional Drawings * 825 MA

Uniform 360 degree discharge pattern

* 2634 - Square or rectangular Spring actuated (6) out-of-airstream fire damper for horizontal or vertical mount

2 position adjustment for heating and cooling seasons

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 * Double deflection diffuser * Front blades parallel to shortest dimension * Back blades parallel to longest dimension * All blades adjustable allowing 4-way flow adjustment * Soft White Options * 934 O - with recessed screwdriver operated opposed blade damper * 1333 and 1334 Series - stainless steel double deflection * Tamper proof screws * Standard Color or Design Color Finish available on this product

4 1/4" Vertical Mount Fire Damper 2633-24X14 Residential Registers & Grilles listed Fire-Resistance Diffuser * TVBh3. 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