Pay in 4 interest-free payments of $21.01 Learn more
Ships within 48 hours · Estimated delivery Nov 16 - Nov 21
Designer Colors
Square to round transition collar
450 Series Engineering/Performance Data
904 - Double Deflection Adjustable Aluminum Blade Grille For a 20" x 10" Duct Opening (front blades parallel to shortest dimension)
Five air patterns available
4 1/4" Vertical Mount Fire Damper 2633-10X6 Accessories Designer Colorsh3. 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
