The 942 Extension Module Vario HPG combines an "iPump" IC high-pressure pump with a degasser, a purge valve, an inline filter and a pulsation absorber. The accessories enclosed with it include a gradient mixing coil and additional components that are required for the operation of a gradient system.
Up to three Extension Modules each can be attached to every 940 Professional IC Vario, 943 Professional Reactor/Thermostat Vario or 945 Professional Detector Vario instrument.