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Ships within 48 hours · Estimated delivery Aug 8 - Aug 13
Diffuser Only (no damper)
904 - Double Deflection Adjustable Aluminum Blade Grille for a 48" x 18" Duct Opening (front blades parallel to shortest dimension)
Retainer cables are provided on sizes 12" and larger to allow the inner cones to hang securely while adjusting the diffuser
Installation Ring only
listed Fire-Resistance Diffusers * TVB - Thermal Vapor Blanket * Square collar
4" Horizontal/Vertical Mount Fire Damper 2634-48X32 Accessories Diffuser Only (no damper)h3. 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
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