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Clean Filters®

Guarantee of maximum filtering efficiency

Clean Filters® is the brand of air, oil, diesel, gas, and cabin filters by Delgrosso, an Italian company that has been producing a complete range of filtering systems for the transportation industry for more than 60 years. A range able to satisfy all the technical and functional requirements of all members of the automotive aftermarket, of manufacturers of any kind of engine for trucks, cars, industrial vehicles, agricultural machines, heavy equipment, marine engines, and machine tools.


Quality products and services, values that create value.

Founded in 1951, the company started producing filters in 1960, established the brand Clean Filters® in 1975, was incorporated in 1979, and has been active in the market continuously, developing technical solutions that are always innovative. In 2009 it was recognized by Fiat Parts & Service as best supplier of the year.
Delgrosso is an OEM supplier of the major Italian car brands, as well as a privileged partner of the primary European and Global manufacturers.
In the recent past it expanded its core business, entering the areas of Water and Oil&Gas filtration, and today offers a service of designing and producing integrated solutions for filtration in all functional applications for the development of business and human activities.
  • 1951
    Mario Delgrosso establishes Delgrosso SpA
  • 1960
    Delgrosso SpA starts producing filters for the automotive industry
  • 1975
    The company’s Clean Filters own brand is registered and launched
  • 1979
    Delgrosso turns into public limited company
  • 1982
    Clean Filters enters into foreign markets
  • 1990
    We inaugurate the warehouse dedicated to the shipments
  • 1995
    Delgrosso SpA achieves Quality Certification ISO 9001
  • 2000
    Clean Filters enters into East European markets
  • 2004
    Delgrosso SpA achieves Quality Certification ISO TS 16949:2002
  • 2007
    Clean Filters consolidates its position in the international markets
  • 2009
    Delgrosso SpA receives the award as Best Supplier of the Year by Fiat Group for Service Parts
  • 2011
    The company celebrates 60 years from foundation
  • 2015
    40 years anniversary of the brand Clean Filters
Some facts:
65 years

15.000 m2 covered
with 3 specialized
production plants

11 million  products manufactured
every year

4.000 different product