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Ships within 48 hours · Estimated delivery Aug 17 - Aug 22
Minimum size 4"x4"
904 - Double Deflection Adjustable Aluminum Blade Grille For a 30" x 10" Duct Opening (front blades parallel to shortest dimension)
375 Series Engineering/Performance Data
CB20 - two way
2" Vertical Mount Fire Damper 2501-30X12 T-Bar Minimum size 4"x4"h3. Standard Features * 2501 Square or rectangular for vertical mount only. Maximum dimension 48w, 49h. * 2502 Square or rectangular spring actuated (6) for horizontal or vertical mount. Maximum dimension 41w, 36h. * UL and California State Fire Marshall approved * 2" thinline frame * Interlocking steel roll formed blade (3) with roll formed frames (1) * Blade lock (5) * Damper manufactured from corrosion tested galvanized mild steel (G 90) * Self
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