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Ph 800.322.8676

www.adp-hvac.com

Fx 800.604.3324

39

Opposed Blade Dampers

OBDB / OBDBS / OBDBL

Opposed Blade Dampers for Square and Rectangular Necks

OBDB:

Fits D minus 3/4” necks (use for all models except those listed below)

OBDBS:

Fits D minus 1/4” or 1/2” necks (use for AM3, AM5, AM6, APC3, APC5,

APM1, APM3, APM5, APS3 & APA3 diffusers)

OBDBL:

Fits D minus 1/4” necks (use for AL1, AL3 & AL6 diffusers – lever operated)

Features:

• Heavy-gauge steel construction

• Gang-operated opposed blades meter air volume

precisely with minimum air disturbance

• Flat black powder coated epoxy finish

OBDB/OBDBS

(screwdriver operated)

OBDBL

(Lever operated)

Duct

Size

6”x4”

6”x6”

8”x4”

8”x6”

8”x8”

9”x9”

10”x4”

10”x6”

10”x8”

10”x10”

12”x4”

12”x6”

12”x8”

12”x10”

List Price

OBDB

SKU

56753

56754

56755

56756

56757

56758

56759

56760

56761

56762

56763

56764

56765

56766

12

12

12

12

16

16

12

16

16

16

16

16

16

20

Duct

Size

12”x12”

14” x 4”

14”x6”

14”x8”

14”x10”

14”x12”

14”x14”

16”x4”

16”x6”

16”x8”

16”x10”

16”x12”

16”x14”

16”x16”

List Price

OBDB

SKU

56767

56768

56769

56770

56771

56772

56773

56775

56776

56777

56778

56779

56780

56781

20

16

16

20

20

20

24

16

20

20

20

24

24

28

Duct

Size

18”x4”

18”x6”

18”x8”

18”x10”

18”x12”

18”x14”

18”x16”

18”x18”

20”x4”

20”x6”

20”x8”

20”x10”

20”x12”

20”x14”

List Price

OBDB

SKU

56782

56783

56784

56785

56786

56787

56788

56789

56790

56791

56792

56793

56794

56795

20

20

20

24

24

28

28

32

20

20

24

24

28

28

Duct

Size

20”x16”

20”x18”

20”x20”

22”x10”

22”x22”

24”x 4”

24”x 6”

24”x 8”

24”x 10”

24”x 12”

24”x 14”

24”x 16”

24”x 18”

24”x 24”

List Price

OBDB

SKU

56796

56797

56798

56802

56807

56808

56809

56810

56811

56812

56813

56814

56815

56934

32

32

36

28

40

20

24

28

28

32

32

36

36

64

Duct

Size

6”x6”

8”x8”

9”x9”

10”x10”

12”x12”

14”x14”

15”x15”

16”x16”

18”x18”

20”x20”

21”x 21”

22”x22”

24”x 24”

List Price

OBDBS

SKU

56893

56894

56895

56896

56897

56898

56899

56900

Ask

56901

12

16

16

20

24

28

32

36

40

60

List Price

OBDBL

SKU

12

18

20

36

52

64

68

56820

56878

56879

56880

56881

56882

56883

Exclusive

ADP

Feature!

INDUSTRY’S BEST OBD

• Flat black eliminates reflection

• Heavy-duty construction

• Smooth, non-binding operation

• Attached with electro-plated

Z-clips that never rust

• Ten-Year Free Replacement Warranty!