Іs used to connect horizontal and vertical chimney
D - any diameter of standard sizes larger than the diameter of the insert
| Di, mm | L, mm | H, mm | D, mm |
| 100 | 116,5 | 333 | 100 |
| 110 | 111,5 | 333 | 110 |
| 115 | 109 | 333 | 115 |
| 120 | 106,5 | 333 | 120 |
| 125 | 104 | 333 | 125 |
| 130 | 101,5 | 333 | 130 |
| 135 | 99 | 333 | 135 |
| 140 | 96,5 | 333 | 140 |
| 150 | 91,5 | 333 | 150 |
| 160 | 86,5 | 333 | 160 |
| 180 | 110 | 400 | 180 |
| 200 | 100 | 400 | 200 |
| 220 | 90 | 400 | 220 |
| 230 | 110 | 400 | 230 |
| 250 | 100 | 450 | 250 |
| 300 | 100 | 500 | 300 |