HydraMaster TM DeScaler 3.8Ltr Spotting Chemicals a power stretcher is the

a power stretcher is the correct tool and the kicker is for the edges

The parts around it

078-158 — high-temperature seal kit (this part)

Two on the Boxxer 421

HydraMaster TM DeScaler 3.8Ltr Spotting Chemicals a power stretcher is theNon Acid Scale Remover DeScaler is formulated especially for use in cleaning and conditioning of the water systems of a truck mounted cleaning machine or pressure washing system. Using DeScaler on a routine basis will prevent the build up of harmful hard water deposits, chemical residues, and scale. DeScaler is formulated especially for use in cleaning and conditioning of the water systems of a truck mounted cleaning machine or pressure washing