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Square collar designed for 20” × 20” duct
T-Bar hinged 2 Cone Step Down Diffuser with Round Collar
TS Series Engineering/Performance Data
Steel galvaneal construction
4-way reversible door on square sizes
4" Round Horizontal/Vertical Fire Damper 2650-48 Specialty Products Square collar designed for 20”h3. Standard Features * 2649 Round damper for vertical mount only. Available 4" thru 52" round. * 2650 Round spring actuated (6) damper for vertical or horizontal mount. Available 4" thru 52" round. * UL and California State Fire Marshall approved * 4 1 4" standard frame style * 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 locking
