332477 MAPP PRO YELLOW GAS CYLINDER 14.1 OZ. | Work faster and more efficiently with a higher burn temperature than standard propane. The BernzOmatic MAP-PRO hand torch cylinder contains premium fuel suited for a variety of jobsite projects including soldering large copper pipes, brazing and heat treating. Constructed of durable steel, the slim, lightweight cylinder is easy to grip and maneuver. Flame temperature in air is 3730 deg F.