Torch has a cast aluminum body, swirl flame that provides a hotter, more efficient flame with instant on/off trigger igniter and simple one handed operation. Lock button keeps torch lit for finger free use. Cylinder has a lower profile with 20 percent more fuel than 14.1 oz cylinders. Flame temperature in air equals 3600 F. Recyclable; used in medium to heavy soldering and brazing applications. Includes: 16 oz 'MAPP' cylinder, torch head. Includes: 16 oz 'MAPP' Cylinder, TS4000T (070.7364) Torch Head.