Can carry up to 30 lb. refrigerant or recovery cylinders and services as a knapsack to transport other materials to and from the jobsite. A drawstring with a cord lock and flap with latch security hold your materials in place during transport. 8-carbiner loops, a see-through pocket to display OSHA refrigerant labels and an extra pocket. Padded shoulder straps and back pads allows to comfortably carry 50 lbs. Designed to last with heavy duty nylon thread and puncture and abrasion resistant nylon fabric.