RC - Class 1, 250°, Single Thickness Blade, True Round
FR1 - Class 1, 250°F Or 350°F, 1½ Hour Rated, Single Thickness Blade
FR2 - Class 2, 250°F Or 350°F, 1½ Hour Rated, Single Thickness Blade
FS1 - Class 1, 250°F Or 350°F, 1½ Hour Rated, Single Thickness Blade
FS1(SS) - Stainless Steel, Class 1, 250°F Or 350°F, 1½ Hour Rated, Single Thickness Blade
FS2 - Class 2, 250°F Or 350°F, 1½ Hour Rated, Single Thickness Blade
FS2(SS) - Stainless Steel, Class 2, 250°F Or 350°F, 1½ Hour Rated, Single Thickness Blade
FA1 - Class 1, 250°F Or 350°F, 1½ Hour Rated, Airfoil Blade
FA2 - Class 2, 250°F Or 350°F, 1½ Hour Rated, Airfoil Blade
FT1 - Class 1, 250°F Or 350°F, 3 Hour Rated, Single Thickness Blade
FT2 - Class 2, 250°F Or 350°F, 3 Hour Rated, Single Thickness Blade
TA1 - Class 1, 250°F Or 350°F, 3 Hour Rated, Airfoil Blade
TA2 - Class 2, 250°F Or 350°F, 3 Hour Rated, Airfoil Blade
FS1G - Class 1, 250°F or 350°F, 1½ Hour Rated, Single Thickness Blade, for Front Access
FS2G - Class 2, 250°F or 350°F, 1½ Hour Rated, Single Thickness Blade, for Front Access
FA1G - Class 1, 250°F or 350°F, 1½ Hour Rated, Airfoil Blade, for Front Access
FA2G - Class 2, 250°F or 350°F, 1½ Hour Rated, Airfoil Blade, for Front Access
FS2C - Class 2, 250°F. 1 Hour Rated, Single Thickness Blade, for Tunnel Corridor Ceiling Applications
PK-1200, PK-1201 - Model PK-1200 and PK-1201
EHRD - Electric Heat Response Device
ESPT - Electric Sensotherm
IDPI - Integral Dual Position Indication
PHRD - Pneumatic Heat Response Device
PSOT - Pneumatic Sensotherm
Sleeves - FS, FA, FT, TA,
Transitions - Transitions for Sleeved Dampers
Installation Instructions - RC
Installation Instructions - FR
Installation Instructions - FS1, FS2, FA1, FA2, FS1M, FS2M, And MD19
Installation Instructions - FS1, FS2, and MD19 in Stainless Steel Construction
Installation Instructions - FT, MD39
Installation Instructions - FS1G, FS2G, FA1G, and FA2G Front Access Dampers
Installation Instructions - FS2C Corridor Fire/Smoke Dampers
Installation Instructions - One Side Retaining Angles