| Item No. | FCSD6 | FCSD8 |
| Size | 1" X 6' | 1" X 8' |
| Connector Style | Straight | Straight |
| Step Down | 1", 1 ⅛", & 1¼" | 1", 1 ⅛", & 1¼" |
HVAC| Item No. | FCSD6 | FCSD8 |
| Size | 1" X 6' | 1" X 8' |
| Connector Style | Straight | Straight |
| Step Down | 1", 1 ⅛", & 1¼" | 1", 1 ⅛", & 1¼" |