Refrigerant gas R22: 1.difluorochloromethane, 2. in good quality and reasonable price, 3.purity:99.8%. Product:Refrigerant gas R22 Physical Properties Molecular ... steel cylinder 400kg/400L ,800kg/800L ,1000kg/1000L,950kg/926L Quality standard : Purity, %≥99.8Moisture, PPm≤10Acidity, PPm≤0.1Vapor Residue, PPm ... 400L, 800L, 926L, 1000L; ISO-Tank. Refrigerant gas R22 with high purity