Soaking fuel filters in highly flammable Stoddard Solvent is DANGEROUS and time consuming. A better approach is to use an L&R Ultrasonic Cleaning System.



  • Place Basket containing filters into tank filled 2/3 with Hydro-Sonic Cleaning Solution Concentrate or Hydro-Sonic Cleaning Solution Concentrate Non-Ammoniated at the recommended dilution (see product labels).
  • Cavitate 5-10 minutes.
  • Remove and rinse well under warm tap water.
  • Air dry or dry using warm forced air or compressed air.
  • Purge with fuel to displace traces of water before using.

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