Supply and exhaust in low and medium pressure installations as the end of circular ventilation ducts, to outside air.
The body is made of steel. Inlet secured from the inside with a 10×10 galvanized mesh. The base is finished with a galvanized steel flange.
Made of galvanized or acid-resistant sheet.
| ØD1 [mm] | A [mm] | B [mm] | L1 [mm] | L2 [mm] |
| 100 | 200 | 200 | 50 | 50 |
| 125 | 250 | 250 | 50 | 50 |
| 160 | 320 | 320 | 50 | 50 |
| 200 | 400 | 400 | 50 | 50 |
| 250 | 500 | 450 | 75 | 75 |
| 315 | 630 | 550 | 75 | 75 |
| 400 | 800 | 750 | 75 | 75 |
| 500 | 1000 | 950 | 75 | 75 |
| 630 | 1260 | 1150 | 75 | 75 |
| 800 | 1600 | 1300 | 100 | 100 |