Profile: RTF Manufacturing offers an exclusive line of healthcare refrigeration products. Our solid state temperature monitoring and temperature recording systems are the latest in new technology. All our healthcare refrigeration products meet UL standards for product safety and performance. Our blood bank refrigerators are equipped with heavy duty hermetic compressors & direct air-flow cooling systems to help maintain a vital operating temperature of +4°C with a +-1°C differential. Our ultra-low products are equipped with heavy duty hermetic compressors & gravity flow refrigerant cooling systems to maintain a vital operating temperatures of -40°C to -86°C.