Distinction D4000 Water Still-For the convenience of unattended operation the Distinction is supplied complete with a level control device which clips into the collecting reservoir and will turn off the heater when the reservoir is full. All glass construction, including a silica sheathed heating element, and a highly efficient condenser ensure a top quality cool distillate, ready for immediate use. Cleaning the Distinction is particularly simple. A built in PTFE drainage stopcock and acid funnel allow cleaning without dismantling. Screwthread connectors make hose fitting and removal quick, easy and safe and there are not one, but two thermostats for extra security. NB: No 13 amp plug supplied, needs hardwire connection direct to electricity system.