4 1/4" Vertical Mount Fire Damper 2633-20X6 Step Down Ceiling Diffuser with color matching Phillips posi-drive

with color matching Phillips posi-drive screws * All component parts

Standard Features *

Filter retention tabs

Curved saddle with gasket provides airtight fit to spiral pipe

Spring actuated curtain-type fire damper with 2 1/4" round connection for horizontal or vertical mount

4 1/4" Vertical Mount Fire Damper 2633-20X6 Step Down Ceiling Diffuser with color matching Phillips posi-driveh3. 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