Ductboard Collar
- 404D
- Equivalent Length 35'.
- Sizes 4" - 7", 9"; available available 24 per box.
- Size 10" available 18 per box.
- Sizes 8", 12"; available 12 per box.
- Size 14" available 10 per box.
- Size 16" available 8 per box.
- Size 18" available 6 per box.
- Size 20" available 4 per box.
- Size 22" packaged to order.