36 items
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Famous Supply- Duct Height: 19-1/2 in
- Duct Width: 11-1/2 in
- Effective Area: 191 sq. in
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Famous Supply- Duct Height: 29-1/2 in
- Duct Width: 15-1/2 in
- Effective Area: 390 sq. in
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Famous Supply- Duct Height: 29-1/2 in
- Duct Width: 19-1/2 in
- Effective Area: 489 sq. in
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Famous Supply- Duct Height: 29-1/2 in
- Duct Width: 23-1/2 in
- Effective Area: 592 sq. in