Ideal for use with circulating baths, these chillers provide rapid, low-cost cooling of liquids to temperatures as low as -100C. Applications include cannabis extraction, cooling of exothermic reactions, freeze point determinations, botanical extraction, freeze drying, impact testing, lyophilization, and vapor and solvent trapping. The chillers are a cost-effective alternative to dry ice or liquid nitrogen.Simple to use. Just plug it in and immerse the stainless-steel probe in your fluid sample. A flexible hose allows convenient placement of the cooling probe. Please note, these chillers do not have an adjustable low temperature set point.Insulated flexible hose measures 4-ft (1.22 meters) long and 1.5" (3.81 cm) in diameter. Exposed rigid coil probe measures 15" (38.1 cm) long and 1.5" (3.81 cm) in diameter.