Cylinder R-410A is the preferred refrigerant for use in new residential air conditioners. It functions at a higher pressure than R-22. so new compressors are built to withstand greater stresses. reducing the chance for cracking. R-410A offers greatr efficiency. saving you in energy costs. and is much better for the environment. Features: Comstars R-410A has replaced R-22 as the preferred refrigerant for use in new residential and commercial air conditioners applications in Japan. Europe and the United States – R-410A is widely accredited because it only contains hydro-fluorocarbon (HFC) which does not contribute to ozone depletion – R-410A has become the new standard for U.S. residential air conditioning systems since 2015R-410A is more reliable and efficient in operation – Because R-410A can absorb and release more heat than R-22. air conditioning compressors can run cooler reducing the risk of compressor burnout due to overheating – R-410A system operates more efficiently reducing wear and tear on the compressor because it uses synthetic oil that is more soluble than mineral oil used with R-22Description.R410A refrigerant 25 lbs. new factory sealed Virgin refrigerant. Condition is New.