4 1/4" Horizontal/Vertical Mount Fire Damper 2602-18X12 T-Bar Standard collar diameter is the

Standard collar diameter is the same as the diffuser size

listed Fire-Resistance Diffuser * TVB - Thermal Vapor Blanket * Square collar

Soft white

055 T6 extruded aluminum * Five air patterns: 700 CB10 - one way

Standard Features * T-Bar lay-in panel with hinged perforated face * Galvaneal steel 2x2 panel with seismic hangers * Spring push release for removal of perforated face * Round No Labor Collar sizes: 6-10"

4 1/4" Horizontal/Vertical Mount Fire Damper 2602-18X12 T-Bar Standard collar diameter is theh3. Standard Features * 2601 Square or rectangular for vertical mount only. Maximum dimension 60x60 single, 120x120 multiple. * 2602 Square or rectangular spring actuated (6) for horizontal or vertical mount. Maximum dimension 60x60. * 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