Straight Line Exhaust Box is most suitable for exhausting air out of filled can before sealing. The Exhaust Box is available in 12 and 18 feet length and made from aluminium cover top or bottom of 16 swags. The Exhaust Box is designed with a straight line that conveys the can by means of mild steel slat chin conveyor. Straight Line Exhaust Box is capable of passing 2 cans at a time.