40"x60" Class 1 Control Damper

42"X60" Class 1 Control Damper

48"x36" Class 1 Control Damper

59.5"X71.25" DAMPER

80"x18" OPPOSED BLD DAMPER

22"w x 22"h Volume Damper

12"Wx24"H OPPOSED BLADE DAMPER

Volume Control Damper, Opposed Blade Operation, Double Piece 13 Gauge Galvanized Blade/ Frame, Standard Bearing, 30" Width x 26" High

Volume Control Damper, Opposed Blade Operation, Double Piece 13 Gauge Galvanized Blade/ Frame, Standard Bearing, 42" Width x 40" High

Two-Tonesequential