hilmor 1891628 HVAC/R Refrigerant Tank & Utility Backpack Can carry up to 30 lb refrigerant or recovery cylinders and serves as a knapsack to transport other materials to and from the jobsite A drawstring with a cord lock and flap with latch securely hold your materials in place during transport 8-carabiner loops, a see-through pocket to display OSHA refrigerant labels and a pocket keep you together Padded shoulder straps and back pads allow you to comfortably carry up to 50 lbs Designed to last with heavy duty nylon thread and puncture and abrasion resistant nylon fabric