4 1/4" Horizontal/Vertical Mount Fire Damper 2602-30X28 Residential Registers & Grilles Square collar designed for a

Square collar designed for a 20” × 20”

Standard Features * Field installable butterfly damper * Available in sizes 6

Designed for protection of ceiling openings in fire rated floor/ceiling assemblies with fire resistance ratings of 3 hours or less

* UL and California State Fire Marshall approved * 4-1/4" standard frame style * Maximum dimension 60w

Adjustable curved blade diffuser

4 1/4" Horizontal/Vertical Mount Fire Damper 2602-30X28 Residential Registers & Grilles Square collar designed for ah3. 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