Zeotropic blend of R-134a and HFO-1234ze (Solstice® ze) designed to serve as a non flammable alternative to R-134a in medium temperature systems, offering similar performance and energy efficiency but with a global warming potential of only 547 (a reduction of almost 60% of GWP, according to IPCC 5th). Use for heat pumps, air-cooled and water-cooled chillers, district heating and cooling, vending machines and beverage dispensers, high stage of CO2 cascade systems, high stage of cascade CO2 systems, DX medium temperature refrigeration etc. Download for free our refrigerant system simulation tool which makes it easier than ever to select the right refrigerant.