The DuraChill Benchtop from PolyScience is now available with natural refrigerants, making it more environmentally friendly while still reaching a low temperature of -30°C. The pump sits fully below the reservoir to make it easier to prime, and it offers quiet operation in a small footprint. With a low flow safety switch, the system will shut down before it freezes up. Liquid level detection is enabled in the tank standard, designed to improve the reliability and serviceability of the chiller. The diagnostic self test aims to reduce shipping costs for returns and make it easier for users to diagnose a problem with the unit.