Ideal for molecular biology and teaching labs. This 20-L water bath provides aeration and constant temperature needed for suspension cultures of bacterial cells. Temperature control is ±1° with digital readout. Temperature range is from ambient to 75° C. The unit has a lighted on/off switch and a temperature adjustment knob. Variable oscillation is 0 to 60 rpm. Stainless-steel tank and flexible stainless spring rack holds almost every type of tube or flask. Thermocouple safety reset will not let element burn out if unit is left on without water. Comes with replacement safety fuse. Inner dimensions of tub, 19 1/2 × 11 1/2 × 6"; outside dimensions, 25 1/2 × 14 × 7". 110 V.