Refrigerant gas r22 . COLORLESS AND CLEAR,ODORLESS HIGH PURITY EXCELLENT THERMAL AND CHEMICAL PROPERTIES FREON GAS R22 HONEYWELL, DAIKAIN, ... .20Critical pressure (MPa) 4.99ODP 0.034GWP 1700.00Quality Index Purity ≥99.90%Water content ≤0.001%Acidity ≤0.00001%Evaporation residue ... ,926L,1000LISO-TANK 13.6kg (30lbs) Refrigerant Gas R22,high purity 99.9%