Product Feature High purity, Safty, Competitive price. Product Specification/Models Gas SF6 Purity 99.9999% Description Airí_500,CF4í_500,H2Oí_8,Acidí_0.3,Dissoluble Fluoridí_0.1,Petrolatumí_10. 40L/50L ISO carbonsteel cylinder, Net weight: 55kg Gross weight: 100kg.