Set of Perlast seals to replace the Viton seals used within the Hydro 2000SM sample dispersion unit. This kit includes Perlast-fitted cell connectors, chemically compatible tubing, cell window seals and the seal for the centre of the measurement cell. A set of labels are also supplied to signify that a seal upgrade has occured. This kit can be factory fitted if ordered at the same time as the Hydro 2000SM. Field upgrade of an existing system is possible, although this is a service engineer task. Note: The Hydro SM unit is shipped with internal Perlast seals as standard, thus only those seals associated with the measurement cell need to be upgraded.