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904 - Double Deflection Adjustable Aluminum Blade Grille for a 48" x 18" Duct Opening (front blades parallel to shortest dimension)
Square collar designed for a 20” × 20”
904 - Double Deflection Adjustable Aluminum Blade Grille For a 34" x 18" Duct Opening (front blades parallel to shortest dimension)
SD52 Submittal Drawing
Non-standard size collar (available in 6" through 20")
4" Horizontal/Vertical Mount Fire Damper 2634-30X8 T-Bar 904 - Double Deflection Adjustableh3. 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
US$ 437.50
US$ 412.50
US$ 437.50
US$ 582.50
US$ 847.50
