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Square collar designed for 20” × 20” duct
CB20 - two way
104 D FR - U
950 Series Engineering/Performance Data
Face set in an outer T-Bar filter grille frame
2" Vertical Mount Fire Damper 2533-48X28 Residential Registers & Grilles Square collar designed for 20”h3. Standard Features * 2533 Square or rectangular for vertical mount only. Maximum dimension 48w, 41h. * 2534 Square or rectangular spring actuated (6) for horizontal or vertical mount. Maximum dimension 41w, 29h. * 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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