Spiral Duct Fitting Coupling With Rubber
1.Highly-durable.
2.Firm Fitment.
3.Airtight lock seams.
4.Economical duct connector.
Spiral duct fitting coupling with rubber
1.Spiral duct fitting coupling are manufactured from galvanized steel meeting spec ASTM A-653 (Lockforming quality) for Spiral Pipe.
2.They feature a double legged EPDM gasket which creates a virtually airtight connection when slipped into spiral pipe.
3.The gasket is mechanically attached to the fitting with a 180 degree hemmed edge. This hem gives added rigidity to the fittings, ensures that the gasket will never slip out of place and makes a safe rounded edge for the installer.

| SIZE | d | H |
| 80 | 78.8 | 40 |
| 100 | 98.8 | 40 |
| 125 | 123.8 | 40 |
| 150 | 148.7 | 40 |
| 160 | 158.7 | 40 |
| 180 | 178.6 | 40 |
| 200 | 198.6 | 40 |
| 225 | 223.6 | 40 |
| 250 | 248.5 | 40 |
| 280 | 278.5 | 40 |
| 300 | 298.4 | 40 |
| 315 | 313.4 | 40 |
| 355 | 353.3 | 40 |
| 400 | 398.3 | 40 |

