Ceiling Dampers Sizing

Uses item details. Price when purchased online

Fits 6 Inch Neck Air Duct | Steel Round Air Supply Diffuser for Ceiling by Handua | 8" Neck Steel Butterfly Damper&Handle Included | Round Diffuser Vent Cover | White | Outer Dimension: 9-15/16" From $38.79

Fits 6 Inch Neck Air Duct | Steel Round Air Supply Diffuser for Ceiling by Handua | 8" Neck Steel Butterfly Damper&Handle Included | Round Diffuser Vent Cover | White | Outer Dimension: 9-15/16"
Sponsored
From$3879

Fits 6 Inch Neck Air Duct | Steel Round Air Supply Diffuser for Ceiling by Handua | 8" Neck Steel Butterfly Damper&Handle Included | Round Diffuser Vent Cover | White | Outer Dimension: 9-15/16"

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B&B Molders RV Camper 4" Thermovent with Damper, White $9.98

B&B Molders RV Camper 4" Thermovent with Damper, White
Sponsored
current price $9.98

B&B Molders RV Camper 4" Thermovent with Damper, White

Honeywell Y8150A1017 - Fresh Air Ventilation System With TrueZone Damper $172.52

Honeywell Y8150A1017 - Fresh Air Ventilation System With TrueZone Damper
Sponsored
current price $172.52

Honeywell Y8150A1017 - Fresh Air Ventilation System With TrueZone Damper

4 out of 5 Stars. 3 reviews

American Metal Ceiling Damper 6 In. Round Adjustable - Brown Enamel Finish, 6" Size $19.40 Was $25.99

American Metal Ceiling Damper 6 In. Round Adjustable - Brown Enamel Finish, 6" Size
current price Now $19.40, Was $25.99

American Metal Ceiling Damper 6 In. Round Adjustable - Brown Enamel Finish, 6" Size

36 in 36"H-W Aluminum Ceiling Truss Damper, 35-3/4 in x 34 in, Aluminum $198.12

36 in 36"H-W Aluminum Ceiling Truss Damper, 35-3/4 in x 34 in, Aluminum
current price $198.12

36 in 36"H-W Aluminum Ceiling Truss Damper, 35-3/4 in x 34 in, Aluminum

3 out of 5 Stars. 1 reviews

Hart & Cooley 126 - 6 In. Round Ceiling Diffuser Butterfly Damper $50.94

Hart & Cooley 126 - 6 In. Round Ceiling Diffuser Butterfly Damper
current price $50.94

Hart & Cooley 126 - 6 In. Round Ceiling Diffuser Butterfly Damper

Selkirk 8 In. Round Ceiling Damper 1800B8R $31.62

Selkirk 8 In. Round Ceiling Damper 1800B8R
current price $31.62

Selkirk 8 In. Round Ceiling Damper 1800B8R

Havaco Quick Connect HT-CCGRB-R1D White Round Capital Crown Ceiling Diffuser 8-7-6 in. Boot & Rotary Damper $36.77

Havaco Quick Connect HT-CCGRB-R1D White Round Capital Crown Ceiling Diffuser 8-7-6 in. Boot & Rotary Damper
current price $36.77

Havaco Quick Connect HT-CCGRB-R1D White Round Capital Crown Ceiling Diffuser 8-7-6 in. Boot & Rotary Damper

Fits 6 Inch Neck Air Duct | Steel Round Air Supply Diffuser for Ceiling by Handua | 8" Neck Steel Butterfly Damper&Handle Included | Round Diffuser Vent Cover | White | Outer Dimension: 9-15/16" From $38.79

Fits 6 Inch Neck Air Duct | Steel Round Air Supply Diffuser for Ceiling by Handua | 8" Neck Steel Butterfly Damper&Handle Included | Round Diffuser Vent Cover | White | Outer Dimension: 9-15/16"
Available in additional 4 options
From$3879

Fits 6 Inch Neck Air Duct | Steel Round Air Supply Diffuser for Ceiling by Handua | 8" Neck Steel Butterfly Damper&Handle Included | Round Diffuser Vent Cover | White | Outer Dimension: 9-15/16"

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Fits 12 Inch Neck Air Duct | Steel Butterfly Damper by Handua | For Round Ceiling Air Supply Diffuser with Plastic Key-Handle | Black | Outer Dimension: 13-1/2" From $18.49

Fits 12 Inch Neck Air Duct | Steel Butterfly Damper by Handua | For Round Ceiling Air Supply Diffuser with Plastic Key-Handle | Black | Outer Dimension: 13-1/2"
Available in additional 4 options
From$1849

Fits 12 Inch Neck Air Duct | Steel Butterfly Damper by Handua | For Round Ceiling Air Supply Diffuser with Plastic Key-Handle | Black | Outer Dimension: 13-1/2"

White Round Ceiling Diffuser 8-7-6 in. Reducing Boot and Rotary Damper $28.17 Was $37.19

White Round Ceiling Diffuser 8-7-6 in. Reducing Boot and Rotary Damper
current price Now $28.17, Was $37.19

White Round Ceiling Diffuser 8-7-6 in. Reducing Boot and Rotary Damper

42 in 44"H-W 4.5"L Alu Ceiling Shutter Dampr, 42 in x 42 in, Aluminum $602.52

42 in 44"H-W 4.5"L Alu Ceiling Shutter Dampr, 42 in x 42 in, Aluminum
current price $602.52

42 in 44"H-W 4.5"L Alu Ceiling Shutter Dampr, 42 in x 42 in, Aluminum

Dayton 24 in 26"H-W Aluminum Ceiling Truss Damper, 30 in x 24 in, Aluminum 3HHR6 $218.32

Dayton 24 in 26"H-W Aluminum Ceiling Truss Damper, 30 in x 24 in, Aluminum 3HHR6
current price $218.32

Dayton 24 in 26"H-W Aluminum Ceiling Truss Damper, 30 in x 24 in, Aluminum 3HHR6

Tru Aire 6 in. H X 6 in. W Powder Coat Brown Steel Ceiling Damper $16.05

Tru Aire 6 in. H X 6 in. W Powder Coat Brown Steel Ceiling Damper
current price $16.05

Tru Aire 6 in. H X 6 in. W Powder Coat Brown Steel Ceiling Damper

12" DAMPER - Control Your Airflow on drop ceiling grilles of 24x24 (12" round duct opening) $47.64

12" DAMPER - Control Your Airflow on drop ceiling grilles of 24x24 (12" round duct opening)
current price $47.64

12" DAMPER - Control Your Airflow on drop ceiling grilles of 24x24 (12" round duct opening)

18 in 21"H-W 5 1/4"L Aluminum Backdraft Damper, 18-1/2 in x 18-1/2 in, Aluminum $119.63 Was $132.99

18 in 21"H-W 5 1/4"L Aluminum Backdraft Damper, 18-1/2 in x 18-1/2 in, Aluminum
current price Now $119.63, Was $132.99

18 in 21"H-W 5 1/4"L Aluminum Backdraft Damper, 18-1/2 in x 18-1/2 in, Aluminum

Hart & Cooley 1210 - 10 In. Round Ceiling Diffuser Butterfly Damper $31.63

Hart & Cooley 1210 - 10 In. Round Ceiling Diffuser Butterfly Damper
current price $31.63

Hart & Cooley 1210 - 10 In. Round Ceiling Diffuser Butterfly Damper

Ceiling Register - Air Vent Covers for Home Ceiling or Wall - 10X4 Inch (Duct Opening) 3-Way White Grille Register Cover with Adjustable Damper for HVAC Heat and Cold Air Conditioner $28.74

Ceiling Register - Air Vent Covers for Home Ceiling or Wall - 10X4 Inch (Duct Opening) 3-Way White Grille Register Cover with Adjustable Damper for HVAC Heat and Cold Air Conditioner
current price $28.74

Ceiling Register - Air Vent Covers for Home Ceiling or Wall - 10X4 Inch (Duct Opening) 3-Way White Grille Register Cover with Adjustable Damper for HVAC Heat and Cold Air Conditioner

Havaco Quick Connect HT-GRB-S1D White Square Ceiling Diffuser 8-7-6 in. Reducing Boot and Rotary Damper $29.02 Was $36.09

Havaco Quick Connect HT-GRB-S1D White Square Ceiling Diffuser 8-7-6 in. Reducing Boot and Rotary Damper
current price Now $29.02, Was $36.09

Havaco Quick Connect HT-GRB-S1D White Square Ceiling Diffuser 8-7-6 in. Reducing Boot and Rotary Damper

5 out of 5 Stars. 1 reviews

54 in 57"H-W 6 1/4"L Aluminum Backdraft Damper, 54-1/2 in x 54-1/2 in, Aluminum $712.07 Was $851.99 $712.07/1

54 in 57"H-W 6 1/4"L Aluminum Backdraft Damper, 54-1/2 in x 54-1/2 in, Aluminum
current price Now $712.07, Was $851.99
$712.07/1

54 in 57"H-W 6 1/4"L Aluminum Backdraft Damper, 54-1/2 in x 54-1/2 in, Aluminum

30 in 35 7/8"H-W Aluminum Ceiling Truss Damper, 28-3/4 in x 33-7/8 in, Aluminum $166.75

30 in 35 7/8"H-W Aluminum Ceiling Truss Damper, 28-3/4 in x 33-7/8 in, Aluminum
current price $166.75

30 in 35 7/8"H-W Aluminum Ceiling Truss Damper, 28-3/4 in x 33-7/8 in, Aluminum

3.7 out of 5 Stars. 3 reviews

Havaco Quick Connect HT-GRB-R1D White Round Ceiling Diffuser 8-7-6 in. Reducing Boot and Rotary Damper $39.31

Havaco Quick Connect HT-GRB-R1D White Round Ceiling Diffuser 8-7-6 in. Reducing Boot and Rotary Damper
current price $39.31

Havaco Quick Connect HT-GRB-R1D White Round Ceiling Diffuser 8-7-6 in. Reducing Boot and Rotary Damper

18 x 18 in. Seal Tight Damper $350.89

18 x 18 in. Seal Tight Damper
current price $350.89

18 x 18 in. Seal Tight Damper

Rollback Uxcell Ceiling Spring Vibration Isolator Hangers Mechanical Vibration Damping Mounts Blue 3.35 x 1.65 x 1.26 Inch From $38.47

Uxcell Ceiling Spring Vibration Isolator Hangers Mechanical Vibration Damping Mounts Blue 3.35 x 1.65 x 1.26 Inch
Blue, variant on Uxcell Ceiling Spring Vibration Isolator Hangers Mechanical Vibration Damping Mounts Blue 3.35 x 1.65 x 1.26 Inch
Red, variant on Uxcell Ceiling Spring Vibration Isolator Hangers Mechanical Vibration Damping Mounts Blue 3.35 x 1.65 x 1.26 Inch
From$3847

Uxcell Ceiling Spring Vibration Isolator Hangers Mechanical Vibration Damping Mounts Blue 3.35 x 1.65 x 1.26 Inch

Hart & Cooley 128 - 8 In. Round Ceiling Diffuser Butterfly Damper $26.94 Was $51.61

Hart & Cooley 128 - 8 In. Round Ceiling Diffuser Butterfly Damper
current price Now $26.94, Was $51.61

Hart & Cooley 128 - 8 In. Round Ceiling Diffuser Butterfly Damper

Quick Connect White Square Capital Crown Ceiling Diffuser 8 in. Boot & Butterfly Damper - White - 8in. $29.16 Was $33.67

Quick Connect White Square Capital Crown Ceiling Diffuser 8 in. Boot & Butterfly Damper - White - 8in.
current price Now $29.16, Was $33.67

Quick Connect White Square Capital Crown Ceiling Diffuser 8 in. Boot & Butterfly Damper - White - 8in.

16 in 19"H-W 5 1/4"L Aluminum Backdraft Damper, 16-1/2 in x 16-1/2 in, Aluminum $109.98

16 in 19"H-W 5 1/4"L Aluminum Backdraft Damper, 16-1/2 in x 16-1/2 in, Aluminum
current price $109.98

16 in 19"H-W 5 1/4"L Aluminum Backdraft Damper, 16-1/2 in x 16-1/2 in, Aluminum

5 out of 5 Stars. 1 reviews

Ceiling Register - Air Vent Covers for Home Ceiling or Wall - 12X6 Inch (Duct Opening) 1-Way White Grille Register Cover with Adjustable Damper for HVAC Heat and Cold Air Conditioner From $13.46

Ceiling Register - Air Vent Covers for Home Ceiling or Wall - 12X6 Inch (Duct Opening) 1-Way White Grille Register Cover with Adjustable Damper for HVAC Heat and Cold Air Conditioner
Available in additional 10 options
From$1346

Ceiling Register - Air Vent Covers for Home Ceiling or Wall - 12X6 Inch (Duct Opening) 1-Way White Grille Register Cover with Adjustable Damper for HVAC Heat and Cold Air Conditioner

4.2 out of 5 Stars. 10 reviews
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42 in 43"H 32"W Aluminum Ceiling Truss Damper, 41 in x 30 in, Aluminum $356.34

42 in 43"H 32"W Aluminum Ceiling Truss Damper, 41 in x 30 in, Aluminum
current price $356.34

42 in 43"H 32"W Aluminum Ceiling Truss Damper, 41 in x 30 in, Aluminum

Rollback Uxcell Ceiling Spring Vibration Isolator Hangers Mechanical Vibration Damping Mounts Anti Vibration 4.29 x 4.61 x 1.89 Inch From $42.49

Uxcell Ceiling Spring Vibration Isolator Hangers Mechanical Vibration Damping Mounts Anti Vibration 4.29 x 4.61 x 1.89 Inch
Available in additional 2 options
From$4249

Uxcell Ceiling Spring Vibration Isolator Hangers Mechanical Vibration Damping Mounts Anti Vibration 4.29 x 4.61 x 1.89 Inch

Uxcell 3" HVAC Duct Manual Volume Damper, Adjustment Airflow Backdraft Dampers, White $29.69

Uxcell 3" HVAC Duct Manual Volume Damper, Adjustment Airflow Backdraft Dampers, White
current price $29.69

Uxcell 3" HVAC Duct Manual Volume Damper, Adjustment Airflow Backdraft Dampers, White

Uxcell 4" HVAC Duct Manual Volume Damper Adjustment Flame Retardant Damper, Beige From $12.49

Uxcell 4" HVAC Duct Manual Volume Damper Adjustment Flame Retardant Damper, Beige
Beige, variant on Uxcell 4" HVAC Duct Manual Volume Damper Adjustment Flame Retardant Damper, Beige
Dark Grey, variant on Uxcell 4" HVAC Duct Manual Volume Damper Adjustment Flame Retardant Damper, Beige
From$1249

Uxcell 4" HVAC Duct Manual Volume Damper Adjustment Flame Retardant Damper, Beige

5 out of 5 Stars. 1 reviews

White Steel Ceiling Register w/Damper For a Duct Opening of 10" Round - Faceplate Size of 13 5/8" $64.79

White Steel Ceiling Register w/Damper For a Duct Opening of 10" Round - Faceplate Size of 13 5/8"
current price $64.79

White Steel Ceiling Register w/Damper For a Duct Opening of 10" Round - Faceplate Size of 13 5/8"

Uxcell 4" Duct Damper Flap, 304 Stainless Steel HVAC Manual Volume Dampers $13.99

Uxcell 4" Duct Damper Flap, 304 Stainless Steel HVAC Manual Volume Dampers
current price $13.99

Uxcell 4" Duct Damper Flap, 304 Stainless Steel HVAC Manual Volume Dampers

10 in 13"H-W 5 1/4"L Aluminum Backdraft Damper, 10-1/2 in x 10-1/2 in, Aluminum $67.56 $67.56/1

10 in 13"H-W 5 1/4"L Aluminum Backdraft Damper, 10-1/2 in x 10-1/2 in, Aluminum
current price $67.56
$67.56/1

10 in 13"H-W 5 1/4"L Aluminum Backdraft Damper, 10-1/2 in x 10-1/2 in, Aluminum

Uxcell Ceiling Spring Vibration Isolator Hangers Mechanical Vibration Damping Mounts 3.43 x 4.8 Inch

Uxcell Ceiling Spring Vibration Isolator Hangers Mechanical Vibration Damping Mounts 3.43 x 4.8 Inch

Uxcell Ceiling Spring Vibration Isolator Hangers Mechanical Vibration Damping Mounts 3.43 x 4.8 Inch

30 in 35"H 32"W Aluminum Ceiling Truss Damper, 33 in x 30 in, Aluminum $300.73

30 in 35"H 32"W Aluminum Ceiling Truss Damper, 33 in x 30 in, Aluminum
current price $300.73

30 in 35"H 32"W Aluminum Ceiling Truss Damper, 33 in x 30 in, Aluminum

3.3 out of 5 Stars. 3 reviews

12in x 8in Imperial White Steel Rectangular Sidewall/Ceiling Register w/Plate Damper - Overall 13 1/4in x 9 1/4in $33.70

12in x 8in Imperial White Steel Rectangular Sidewall/Ceiling Register w/Plate Damper - Overall 13 1/4in x 9 1/4in
current price $33.70

12in x 8in Imperial White Steel Rectangular Sidewall/Ceiling Register w/Plate Damper - Overall 13 1/4in x 9 1/4in

3.7 out of 5 Stars. 3 reviews

Uxcell 8" HVAC Duct Manual Volume Damper, Adjustment Airflow Backdraft Damper, White $66.59

Uxcell 8" HVAC Duct Manual Volume Damper, Adjustment Airflow Backdraft Damper, White
current price $66.59

Uxcell 8" HVAC Duct Manual Volume Damper, Adjustment Airflow Backdraft Damper, White

Uxcell 2" HVAC Duct Manual Volume Damper, Adjustment Airflow Backdraft Dampers, White $20.24

Uxcell 2" HVAC Duct Manual Volume Damper, Adjustment Airflow Backdraft Dampers, White
current price $20.24

Uxcell 2" HVAC Duct Manual Volume Damper, Adjustment Airflow Backdraft Dampers, White

Uxcell 4" Duct Damper, Stainless Steel Motorized Adjustable HVAC Volume Dampers Airflow Backdraft Damper Control $35.49

Uxcell 4" Duct Damper, Stainless Steel Motorized Adjustable HVAC Volume Dampers Airflow Backdraft Damper Control
current price $35.49

Uxcell 4" Duct Damper, Stainless Steel Motorized Adjustable HVAC Volume Dampers Airflow Backdraft Damper Control

White Steel Ceiling Register w/Damper For a Duct Opening of 8" Round - Faceplate Size of 11 5/8" $45.69

White Steel Ceiling Register w/Damper For a Duct Opening of 8" Round - Faceplate Size of 11 5/8"
current price $45.69

White Steel Ceiling Register w/Damper For a Duct Opening of 8" Round - Faceplate Size of 11 5/8"

Uxcell 5.9 Inch Manual Control Volume Damper, Galvanized Iron Backdraft Damper for Air Duct, Airflow, Dryer Vent, 190mm $34.09

Uxcell 5.9 Inch Manual Control Volume Damper, Galvanized Iron Backdraft Damper for Air Duct, Airflow, Dryer Vent, 190mm
current price $34.09

Uxcell 5.9 Inch Manual Control Volume Damper, Galvanized Iron Backdraft Damper for Air Duct, Airflow, Dryer Vent, 190mm

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