These five sizes of stainless steel tanks are for use with the OptimaTM Series Circulators and provide excellent results for multiple fluids at elevated temperatures. Tanks are easy to clean and resist corrosion. Their glass reinforced plastic outer casing is resistant to common laboratory acids and solvents. These tanks are designed to allow dual-position fitting of the circulator control unit for convenient access. All tanks are supplied with a bridge plate for mounting the circulator.