500ppm Freon® R12 balance Nitrogen in 105 liter cylinder Size: 105 Liter Material: Aluminum Alloy Pressure: 1200 PSI Contents: 3.708 CU FT Gas Type: Non-reactive gas only Dimensions: 12.8" x 3.2" Water Capacity: 1.29 Liters Weight: 1.6 lbs Valve Inlet: 5/8"-18 UNF (C-10) Regulator: 71-Series Material Safety Data Sheet (MSDS)