I am in the process of putting my system back together and am trying to find a suitable replacement for the factory recommended Suniso 5 or Capella E refrigerant oil. I am going to use ES12a refrigerant so the type of oil is not that critical as HCFC refrigerants are compatible with most oils. I search on line and found stuff in bulk, but I only need several ounces. If I could get a quart that would be great.