8707-Cyclone-Burner-Sievert-8707-p-The-Sievert-8707-Cyclone-Burner-has-been-designed-for-brazing-&-soft-soldering-It-produces-an-intensive-&-effective-short-flame-that-reaches-around-the-pipe-p-p-For-use-with-the-253501-253511-&-253547-Powerjet-p-p-Diameter-16mm-p-Sievert-8707-Cyclone-Burner