4 1/4" Vertical Mount Fire Damper 2601-28X28 Smoke-Fire Damper Standard Features * 2533 -

Standard Features * 2533 - Square or rectangular for vertical mount only

For ceiling or sidewall applications

Standard Features * 2x2 panel with fixed 22 gauge steel perforated face * 7/8" fiberglass back (R4 value) * Pattern controllers can be adjusted to 1

blades prevent metal on metal rattle Countersunk mounting holes with color matching Phillips Pozidriv screws Rust-resistant pre-coat with durable powder finish Soft White Options Screwdriver operated Opposed Blade Damper 2" ADC compliant square to round collar with a bead for ease of installation Heavy Duty Construction MRI Compatible Insect Screen Fractional

inner dimension and outside dimension available * Available in continuous lengths with butt joints * Tamper proof screws * Standard Color

4 1/4" Vertical Mount Fire Damper 2601-28X28 Smoke-Fire Damper Standard Features * 2533 -h3. 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