Tiek izmantots, lai pievienotu apkures ierīci vai horizontālo dūmvada posmu vertikālajam dūmvadam.
| Inner Ø mm |
130 |
150 |
160 |
180 |
200 |
230 |
250 |
300 |
350 |
450 |
500 |
| Outer ø mm |
230 |
250 |
260 |
280 |
300 |
330 |
350 |
400 |
450 |
550 |
600 |
| H |
430 |
450 |
460 |
480 |
500 |
530 |
550 |
600 |
650 |
750 |
800 |
