Refrigerant Gas R404 1.Environment protection 2.Competitive price 3.High efficient performance 4.Reasonable price Packing: 11.3kg, 500kg, 1000kg, ISOTANK Refrigerant Gas R404GULUN R404 is a kind of refrigerant of surrounds protection model, used in replacing R22 and R50low poison, non-combustion Refrigerant R-404 is a kind of refrigerant of surrounds-protection model, used in replacing R22 R502. ...