The sievert 2295 anti flare jet gas torch has a unique 1 bar regulator for cartridge pressure control a fixed medium burner is supplied with the torch and modifications help prevent flare ups when used upside down it has precise flame adjustment and comes supplied with a 2204 cartridge propane butane mix it has a 09 kw output for soldering up to 22mm pipe it will fit en417 self sealing cartridges and is very compact when used with a 2203 cartridge