HVAC Premium Round Quadrant - Volume Damper | Round Damper Ring | 14" Galvanized Steel Metal Round Duct Ring Is Compatible With Duct 14"

HVAC Premium Round Quadrant - Volume Damper | Round Damper Ring | 7" Galvanized Steel Metal Round Duct Ring Is Compatible With Duct 7"

Dayton 12"Dia Galvanized Steel Fire Damper: Dynamic, 12 in Duct, 14 in L, Galvanized Steel Frame, Spring Model: 2TFZ8

6"Dia Steel Control Damper: For 6 in Nominal Duct Dia, 7 1/2 in Overall Dia Model: 4JRL4

8"Dia Steel Control Damper: For 8 in Nominal Duct Dia, 9 1/2 in Overall Dia Model: 4JRL5

Manual Damper: 6 in Duct, 11 in H, 6 in W, 6 in L, Steel, 11 in X 6 in Model: VCDR-53-6-KIT

Dayton 13"H-W 5 1/4"L Aluminum Backdraft Damper: For 10 in Fan, Single Panel, 13 in H, 13 in W, 3 in D Model: 3HHN4

10"Dia Steel Control Damper: For 10 in Nominal Duct Dia, 11 1/2 in Overall Dia Model: 4JRL6

12"Dia Steel Snap-On Control Damper: For 12 in Nominal Duct Dia, 11 7/8 in Overall Dia Model: 4JRN1

Dayton 21"H-W 5.75"L Aluminum Backdraft Damper: For 18 in Fan, Single Panel, 21 in H, 21 in W, 2 1/2 in D Model: 4C558

6"Dia Steel Snap-On Control Damper: For 6 in Nominal Duct Dia, 5 3/4 in Overall Dia Model: 4JRL7

Dayton 23"H-W 5.75"L Aluminum Backdraft Damper: For 20 in Fan, Single Panel, 23 in H, 23 in W, 2 1/2 in D Model: 4C559

S&P CAR-100 4 Inch Metal Backdraft Damper

HVAC Duct Manual Volume Damper, Metal Adjustment Airflow Ducting Backdraft Damper Control For Air Ventilation System | Harfington, 8 Inch

Dayton 26"H-W Aluminum Spring Backdraft Damper: For 24 in Fan, Single Panel, 26 in H, 26 in W, 1 5/8 in D Model: 3HHR2

Dayton 7.75"H-W 4.5"L Aluminum Backdraft Damper: For 8 in Fan, For 8 in Nominal Duct Dia, Single Panel Model: 3HHL4

8"Dia Steel Snap-On Control Damper: For 8 in Nominal Duct Dia, 7 3/4 in Overall Dia Model: 4JRL8

Dayton 36"H-W Aluminum Ceiling Truss Damper: For 36 in Fan, Single Panel, 37 3/4 in H, 36 in W, 1 3/8 in D Model: 4HA12

Dayton 17"H-W 4.5"L Aluminum Backdraft Damper: For 12 in Fan, Single Panel, 17 in H, 17 in W, 2 in D, Felt Model: 4HX65

DAYTON 54 in 57"H-W 5 1/4"L Aluminum Backdraft Damper, 54-1/2 in X 54-1/2 In, Aluminum, 3HHP1

HVAC Duct Manual Volume Damper, Metal Adjustment Airflow Ducting Backdraft Damper Control For Air Ventilation System | Harfington, 6 Inch

DAYTON 42 in 45"H-W 5.75"L Aluminum Backdraft Damper, 42-1/2 in X 42-1/2 In, Aluminum, 3C311

Dayton 25"H-W 6"L Aluminum Backdraft Damper: For 20 in Fan, Single Panel, 25 in H, 25 in W, 2 1/4 in D Model: 53DR20

Southwark Metal 1151208 20 X 8 in. Galvanized Steel Manual Trunk Duct Volume Damper

DAYTON 18 in 21"H-W 5 1/4"L Aluminum Backdraft Damper, 18-1/2 in X 18-1/2 In, Aluminum, 3HHN7

DAYTON 24 in 27"H-W 5.75"L Aluminum Backdraft Damper, 24-1/2 in X 24-1/2 In, Aluminum, 3C308

DAYTON 48 in 51"H-W 5.75"L Aluminum Backdraft Damper, 48-1/2 in X 48-1/2 In, Aluminum, 3C312

Dayton Round Fire/Smoke Damper,Galvst 5.9" Dia: Dynamic, 120V AC, 6 in Duct, 5 7/8 in H, 15 5/8 in W Model: 3HGL4

Dayton 12.75"H-W 4.5"L Aluminum Backdraft Dampr: For 10 in Fan, Single Panel, 12 3/4 in H, 12 3/4 in W Model: 4HX73

DAYTON 20 in 23"H-W 5.75"L Aluminum Backdraft Damper, 20-1/2 in X 20-1/2 In, Aluminum, 4C559

AMERICAN LOUVER Balancing Damper, Radial, Galvanized Steel, 14", PK2, ALRD14-2PK

DAYTON 30 in 33"H-W 5 3/4"L Alu Wall Backdraft Damper, 30-1/2 in X 30-1/2 In, Aluminum, 1C055

Nordfab Butterfly Dampers: Steel, For 10 in Duct Dia, 13 in Overall Lg, 10 in Outlet Dia, Galvanized Steel Model: 8010005256