CINCINNATI, February 27, 2024--JSI Store Fixtures, an LSI Industries Inc. company (Nasdaq: LYTS), shipped its first order of refrigerated retail displays featuring environmentally friendly R290 refrigerant this month. JSI’s standalone refrigeration systems are a mainstay in the U.S. grocery market. The new R290 is a propane-based system that provides customers with an alternative product that is a non-toxic, zero ozone-depleting refrigerant with a Global Warming Potential (GWP) of 3, compared to