6" to 4" Metal Duct Red. CKR64 - Pack of 4
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These increasers/reducers allow round ductwork to be increased from 4 to 6 inches or from 6 to 8 inches, or decreased, which is sometimes necessary when you are exhausting from two locations with one in-line fan. They are made of galvanized metal. The actual diameter at each end is 1/8" smaller than the duct it would be secured to.
- Manufacturer Model # (6 to 4): CKR 64
Item No EFI-4530.35
- Voted: 4277
- Brand: Fantech
- Product Code: EFI-4530.35
- Availability: In Stock
- $28.60
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