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OIL CHECKER;Easily identifying all refrigeration, air conditioning;and heat pump lubricants in just seconds.;Easy to use two step process that identifies all type of;oils.;Test results within seconds.;Each kit includes two complete tests.;Should be used to check the type of oil in a system before;adding any additional oil.;Compatible with Mineral, Alkybenzene;and Polyolester type oils.Dimension: 3.75" X 2.125" X 2.125" Country of Origin: United StatesProduct Type: Mavrik