. Secondary Washable Filter For Riccar 4000 Series - This is a Secondary Washable Filter For Riccar 4000 Series. This washable foam secondary filter fits beneath the vacuum bag. Fits these Riccar Vibrance models with the classic body style: Patriotic models VIB-USAFS, VIBCL.USA and VIBUSA.SU, Commercial models VIBC, VIBCNT and VIBCBP, Classic - no tools VIBCLNT, Deluxe models VIBD and VIBDL, Standard models VIBS and VIBST, Entry models VIBE and VIBENT, 20 Series model R20E, R200, R300 and R300C, R500, R600, R800, R800C and R800C4