InventHelp Inventors Develop R 290 Refrigerant Charging Can Stand (TLS-437)

PITTSBURGH, Dec. 29, 2023 /PRNewswire/ — “I work in the HVAC industry and thought there could be a better way for any HVAC-R service technician to quickly, easily, and successfully keep a cylinder can of R-290 refrigerant-grade propane in an inverted vertical position,” said one of two…