28 items
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Famous Supply- Duct Height: 2 in
- Duct Width: 11-5/8 in
- Effective Area: 17 sq. in
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Famous Supply- Duct Height: 5-1/2 in
- Duct Width: 9-5/8 in
- Effective Area: 38 sq. in
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Famous Supply- Duct Height: 3-3/4 in
- Duct Width: 13-5/8 in
- Effective Area: 37 sq. in
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Famous Supply- Duct Height: 5-1/2 in
- Duct Width: 9-5/8 in
- Effective Area: 38 sq. in
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Famous Supply- Duct Height: 5-1/2 in
- Duct Width: 13-5/8 in
- Effective Area: 52 sq. in
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Famous Supply- Duct Height: 2 in
- Duct Width: 13-5/8 in
- Effective Area: 20 sq. in
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Famous Supply
- Duct Height: 5-1/2 in
- Duct Width: 11-5/8 in
- Effective Area: 45 sq. in
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Famous Supply- Duct Height: 2 in
- Duct Width: 13-5/8 in
- Effective Area: 20 sq. in