Filter Spin Disc Powderless, the most popular disc used on all major brand machines today except Suprema.
Used on GreenEarth or Silicone machines also with activated clay or without.
Use with all alternative solvents.
L13585
1402004
320x40mm some companies are listing these as 315x40mm
Union Drycleaning, Realstar, Firbimatic and Columbia OEM part