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Retainer cables are provided on sizes 12" and larger to allow the inner cones to hang securely while adjusting the diffuser
904 - Double Deflection Adjustable Aluminum Blade Grille For a 22" x 18" Duct Opening (front blades parallel to shortest dimension)
Spiral Diffuser Radius Flush Mount Diffuser Single Deflection with Damper
with color matching Phillips posi-drive screws * All component parts
with 54% free area
4 1/4" Vertical Mount Fire Damper 2633-30X8 Smoke-Fire Damper Retainer cables are provided onh3. 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
