KPSL4SW-FSP Air-Propane/MAPP Auto-Ignite Swivel Kit feature the swirl-flame Auto-Ignite tips which are ignited with the push of a button. Quick connect allows you to change tips easily. The swirl provides stability and better heat transfer. Soft solder to 1 1/2" Silver braze to 3/4" Tip: 6Q-4TPSL Regulator: 88QH-R