Hei-PLATE Mix 20 l P/N: 506-54100-00 Stir up to 20 liters without heating Based on our proven magnetic stirrer series with heating function, the Hei-PLATE Mix 20 l was specially developed for applications with thermolabile substances. Because this model has no heating. The Hei-PLATE Mix 20 l magnetic stirrer without heating function is ideal for applications up to 20 liters and can gently stir y..