New
 Dolly Kits high temperature for industrial applications up to 85°C are part
  of the products of Club dei Riparatori, a brand that includes thousands of
  items to manufacture or repair all kinds of pressure washers. A wide section
  of Club dei Riparatori catalogue is dedicated to spare parts for pumps, which
  have the features of the original pieces, but with the extra benefit of 25%
  lower prices on average.
Concerning the high temperature, Club dei Riparatori presents a complete
  range of spare parts including valves, seals, plungers and oil seals fitting
  Hawk series NTM and fitting Interpump/Generalpump series 47.HT ⌀22 and series 63.HT ⌀18.
The Dolly seals fitting Interpump/Generalpump  for high temperature are made of PTFE as
  the original ones, while the Dolly valves are made with the new cage in POM
  with 6 side supports, with spring, plate and seat in stainless steel.