CR

Leakage Class I Round Fire/Smoke Damper AR1

Class I Single Thickness Blade Fire/Smoke Damper AR2

Smoke Leakage Class II Fire/Smoke Damper AS1

Class I Smoke and Fire Damper AS1(SS)

Stainless Steel Fire/Smoke Damper AS2

Smoke Leakage Class II Fire/Smoke Damper AS2(SS)

Stainless Steel Class II Fire/Smoke Damper AT1

Class I Galvanized Steel Fire/Smoke Damper AT2

3 Hour, Class II Fire/Smoke Damper UA1

Class I Airfoil Blade Fire/Smoke Damper UA2

Leakage Class II Airfoil Blade Fire/Smoke Damper VA1

3 Hour, Class I Airfoil Blade Fire/Smoke Damper VA2

3 Hour, Class II Airfoil Blade Fire/Smoke Damper AS1G/F

Class I Front Access Grille Fire/Smoke Damper AS2G/F

Class II Front Access Grille Fire/Smoke Damper UA1G/UA1F

Class I Front Access Grille, Airfoil Blade Fire/Smoke Damper UA2G/UA2F

Class II Front Access Grille, Airfoil Blade Fire/Smoke Damper AS2C

Class II Tunnel-Type Corridor Ceiling Damper