Іt is used to connect horizontal and vertical chimney
Dn, Dv - any diameter of standard sizes larger than the diameter of the insert
| Div, mm | Din, mm | L, mm | H, mm | Dv, mm | Dn, mm |
| 100 | 160 | 86,5 | 333 | 100 | 160 |
| 110 | 180 | 110 | 400 | 110 | 180 |
| 115 | 180 | 110 | 400 | 115 | 180 |
| 120 | 180 | 110 | 400 | 120 | 180 |
| 125 | 200 | 100 | 400 | 125 | 200 |
| 130 | 200 | 100 | 400 | 130 | 200 |
| 135 | 200 | 100 | 400 | 135 | 200 |
| 140 | 200 | 100 | 400 | 140 | 200 |
| 150 | 220 | 90 | 400 | 150 | 220 |
| 160 | 220 | 90 | 400 | 160 | 220 |
| 180 | 250 | 125 | 500 | 180 | 250 |
| 200 | 260 | 120 | 500 | 200 | 260 |
| 220 | 280 | 110 | 500 | 220 | 280 |
| 230 | 300 | 100 | 500 | 230 | 300 |
| 250 | 320 | 90 | 500 | 250 | 320 |
| 300 | 360 | 120 | 600 | 300 | 360 |