Parallel Blade Damper, 16 Gauge Galvanized Frame, 3 V Style Blades, Acetal Bearings, 10" Width x 10" Height, External Left Hand Mount, Applications Where Leakage Is Not Important, Such as Return Air

12"x10" PARALLEL BLD EXT LEFT

Parallel Blade Damper, 16 Gauge Galvanized Frame, 3 V Style Blades, Acetal Bearings, 12" Width x 12" Height, External Left Hand Mount, Applications Where Leakage Is Not Important, Such as Return Air

14"x6" PARALLEL BLD EXT LEFT

Parallel Blade Damper, 16 Gauge Galvanized Frame, 3 V Style Blades, Acetal Bearings, 14" Width x 12" Height, External Left Hand Mount, Applications Where Leakage Is Not Important, Such as Return Air

Parallel Blade Damper, 16 Gauge Galvanized Frame, 3 V Style Blades, Acetal Bearings, 14" Width x 14" Height, External Left Hand Mount, Applications Where Leakage Is Not Important, Such as Return Air

16"x6" PARALLEL BLD EXT LEFT

16"x12" PARALLEL BLD EXT LEFT

Parallel Blade Damper, 16 Gauge Galvanized Frame, 3 V Style Blades, Acetal Bearings, 16" Width x 14" Height, External Left Hand Mount, Applications Where Leakage Is Not Important, Such as Return Air

18"x10" PARALLEL BLD EXT LEFT