Refrigeration and air conditioning technologies have thrived and become commonplace built upon the solid foundation of safe and efficient working fluids. However, regulations relating to the production of chlorine containing refrigerants which deplete stratospheric ozone means that the industry faces a number of years of unprecedented changes. In order to effectively service modern society’s need for refrigeration, long term and transitional replacement products have been developed for new applications and for the servicing of installed equipment. Whatever the needs are, Harp has the solution.