Check the listing for details. 7 Liter Polyscience MX07R-20-A11B Refrigerated Circulator - used once. Condition: New – Open box, Made in United States. Listed at 1499.99 USD. Only used 1 Time. See pics. Dont have Orginal box or papers but the unit is like brand new. The 7 Liter Polyscience MX07R-20-A11B Refrigerated Circulator T-794s is a high-quality recirculating chiller designed by PolyScience, a reputable brand in the industry. This model offers precise temperature control and is manufactured in the United States, making it a reliable choice for various applications. With its large 7-liter capacity, this refrigerated circulator is ideal for cooling and circulating liquids in research labs, industrial settings, or educational institutions. Its efficient performance and durable construction make it a valuable tool for maintaining optimal temperatures in a wide range of experiments and processes.