1.5% Carbon Dioxide balance Nitrogen in a 17 liter cylinder PORTACAL® #17-1.5PN-17LS Size: 17 liter Material: Steel Pressure: 240 PSI Contents: 0.6 cu. ft. Gas Type: Non-Reactive Dimensions: 10.75"x2.9" Water Capacity: 1.0 liters Weight: 1 lb. Valve Inlet: CGA 600 Regulator: 74-Series Material Safety Data Sheet (MSDS)