The freon Dupont: 507;404;410;407 (199 UAH/kg)

Freon Dupont R-507 is a long-term replacement refrigerant for application at low temperatures where still used refrigerants R-502 or R-22. Physical, thermodynamic, refrigeration and performance properties, it meets R-502. In this case the evaporating temperature is lower than R502 and volume the cooling power under certain operating conditions is higher than with R-502 for the most part with only slightly lower the ratio of cold output. On the basis of the azeotropic properties he is the best replacement for R-502.Supplied in cylinders at the 11,3 kg.
Dupont freon R-404a is a colorless gas, quasiisotropic a mixture of R125/R143a/R134a. Trade name ― freon R404A, freon R404A. R404a originally used in equipment designed for low and average boiling point.Recommended for use in low - and medium-temperature commercial refrigeration, transport refrigeration units, including containers, as well as in low-temperature industrial refrigeration. Comes in the cylinders 10, 9 kg.
Freon Dupont R410a is the replacement for R22, used for fuelling new air conditioning high pressure.Very promising is the use of R410a in heat pumps after temporary work on propane, as in comparison with R22 and propane may be a considerable reduction in structural size. R410a retains its performance properties for much longer than that of R22. Comes in cylinders to 11.3 kg.
Dupont freon R-407C is isotropic mixture of R-125, R-32 and R-134a (25/23/52 ― %) with a temperature glide of about 7 K. For a particular use a long-term alternative to R-22. When applications for conditioning the volumetric refrigerating capacity and an indicator cooling power correspond approximately to the R-22. However, a more low evaporation temperatures, both indicators compared to the indicators R-22 deteriorate. In case of leakage, temperature glide can lead to issues.Comes in cylinders to 11.3 kg.