Louvers
Severe Weather/High Performance Louvers Dade County Louvers Extruded Aluminum Stationary Louvers Extruded Aluminum Adjustable Louvers Extruded Aluminum Combination Louvers Formed Steel Stationary Louvers Acoustical Louvers
Dampers
Balancing Dampers Steel Control Dampers Aluminum Airfoil Control Dampers Backdraft Dampers Curtain Fire Dampers Ceiling Radiation Dampers Fire/Smoke Dampers Smoke Dampers UL Installation Instructions
Doors
Duct Access Doors Plenum Access Doors
Gravity Vents
Aluminum Gravity Vents Steel Gravity Vents
Louvered Penthouses Roof Curbs
Aluminum Roof Curbs and Accessories Steel Roof Curbs and Accessories
Actuators
Manual Quadrants 120V Actuators 24V Actuators 230V Actuators Pneumatic Actuators
Louvers and Dampers

Fire/Smoke Dampers

RM MR Class I, 250°F, 1½ hour Single Thickness Blade, True Round Fire/Smoke Damper
MR1 MR Class I, 250°F / 350°F, 1½ hour Single Thickness Blade, Fire/Smoke Damper
MR2 MR Class II, 250°F / 350°F, 1½ hour Single Thickness Blade, Fire/Smoke Damper
MS1   Class I, 250°F / 350°F, 1½ hour Fire Resistance Rating
MS1(SS)   Stainless Steel, Class I, 250°F / 350°F, 1½ hour Fire Resistance Rating
MS2   Class II, 250°F / 350°F, 1½ hour Fire Resistance Rating
MS2(SS)   Stainless Steel, Class II, 250°F / 350°F, 1½ hour Fire Resistance Rating
MA1   Class I, 250°F / 350°F, 1½ hour Fire Resistance Rating, Airfoil Blade
MA2   Class II, 250°F / 350°F, 1½ hour Fire Resistance Rating, Airfoil Blade
MS1G / MS2G   Class I/Class II, 250°F / 350°F, 1½ hour Fire Resistance Rating, Front Access Damper for Grille Installation
MT1   Class I, 250°F / 350°F, 3 hour Fire Resistance Rating
MT2   Class II, 250°F / 350°F, 3 hour Fire Resistance Rating
LA1   Class I, 250°F / 350°F, 3 hour Fire Resistance Rating, Airfoil Blade
LA2   Class II, 250°F / 350°F, 3 hour Fire Resistance Rating, Airfoil Blade
EHRD   Electric Heat Response Device
PHRD   Pneumatic Heat Response Device
ESOT   Electric Sensotherm
PSOT   Pneumatic Sensotherm
IDPI   Integral Dual Position Indication
SLVFS   Sleeves
TRFS   Transitions
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P.O. Box 606 • 7435 Industrial Rd • Florence, KY 41042 • Phone: 859-647-2299 • Fax: 859-647-7810