Pro Plus Multi Purpose Dry Chemical Fire Extinguisher ABC Type, 10 lb (Average) ORS NASCO decreasing fatigue Provides good snag decreasing fatigue Provides good snag Designed for welding gray iron castings to themselves as well as joining them to mild steel Can also be used to repair castings A preheat and interpass temperature on at least 350°F is required during welding Easy to read gauge tells you fire extinguisher is charged and ready for use Rechargeable fire extinguisher for multi purpose use Clear instruction label using graphics to show steps required to operate extinguisher Easy to pull safety pin Tough impact resistant metal valve