behrotest® BSB mixing equipment is reliable and easy to operate. With the fitting additional requirements - from dilution water container with cooling hose over the recirculation thermostat up to the fine metering unit for allylthiourea - entire workstations can be combined. 1 graduated mixing column with 1 l content, three-way valve made of PTFE for bubble-free addition of dilution water from below, however with level deactivation and rinsing device.