It is used to connect parts and vertical flue with a slope of 45°
D - any diameter of standard sizes larger than the diameter of the insert
| Di, mm | L, mm | H, mm | D, mm |
| 350 | 100 | 695 | 350 |
| 400 | 100 | 766 | 400 |
| 450 | 100 | 836 | 450 |
| 500 | 100 | 907 | 500 |
| 550 | 120 | 978 | 550 |
| 600 | 120 | 1018 | 600 |
| 650 | 120 | 1159 | 650 |
| 700 | 150 | 1300 | 700 |
| 750 | 150 | 1361 | 750 |
| 800 | 150 | 1431 | 800 |
| 900 | 150 | 1573 | 900 |
| 1000 | 150 | 1714 | 1000 |