Flat one side increasers are manufactured using standard gauge galvanized steel.
| Part Number | Description | UOM | Ctn.Qty |
| 4DT05 | (M) 5″ TTO DOUBLE | EA | 5 |
| 4DT06 | (M) 6″ TTO DOUBLE | EA | 2 |
Flat one side increasers are manufactured using standard gauge galvanized steel.
Oval Pipe is manufactured with a snap lock and is available in warm air or 30 gauge galvanized steel
Draft Diverter is manufactured using 28 gauge galvanized steel.
Ceiling Boots are manufactured with standard gauge galvanized steel.