For the following products: 820-60142-0 Holder for standard cuvettes, temperature controlled, without stirrer 820-60143-0 Holder for standard cuvettes, temperature controlled, with stirrer 820-60174-0 Holder for cuvettes from 10 to 50 mm, temperature controlled, without stirrer 820-60141-P Cassette Sipper System thermostatted flow cells For the following products: 820-60142-0 Holder for standard cuvettes, temperature controlled, without stirrer 820-60143-0 Holder for standard cuvettes, temperature controlled, with stirrer 820-60174-0 Holder for cuvettes from 10 to 50 mm, temperature controlled, without stirrer 820-60141-P Cassette Sipper System thermostatted flow cells