Back draft damper
To be fitted directly on PVC pipe; available in 5 dimensions (125, 160, 200, 250, 315mm).
| References | Type | Configuration |
| 819125 | Ø 125 | SEAT 15 / STORM 14 |
| 819160 | Ø 160 | SEAT 20 / STORM 16 |
| 819200 | Ø 200 | SEAT 25 |
| 819250 | Ø 250 | SEAT 30 |
| 819315 | Ø 315 | SEAT 35 |
