SKU: STUART-W4000  /   Manufacturer:

Economical price. Glass construction with long life metal heating element. Two independent safety thermostats. Wall mountable.

The Merit is the ideal choice for budget conscious laboratories that can't afford to compromise on quality. It combines economy and high performance with a host of other features which comparable stills cannot match. 

Built in acid addition funnel and drain stopcock allow easy descaling without dismantling the glassware. The unique condenser design ensures that the droplets of distilled water remain in contact with the cooling coil for the longest possible time producing cold distilled water and pre-heating the boiler feed to increase efficiency. Screwthreads are incorporated on all water connections so hoses can be fitted and removed easily and safely without risk of breakage.

Safety features include two independent safety thermostats to prevent over heating in the event of failure of the water supply. The stand is pre-drilled to facilitate wall mounting.


Output4 litres/hr, single distilled
pH5.0 - 6.5
Conductivity, µScm-13.0 - 4.0
Resistivity, mOhm-cm0.25 - 0.3
Temperature25 - 35°C
Pyrogen content *Pyrogen free
Water supply1 litre/min, 3 - 100psi, (20-700kPa)
Electricity supply220 or 240V, 50-60Hz, single phase
Power requirement3kW
Dimensions, (w x d x h)500 x 150 x 450mm
W4000Merit water still, 240V
W4000/EUROMerit water still, 220V