TN 180626 Vacuum Motor Filter for Castex, Nobles, Tennant Floor Care Equipment. A 5.7" diameter "dish" style plastic and foam vacuum fan motor filter. This filter attaches to the base of the 5.7" diameter vacuum motors (commonly 120V motors). This will not fit larger vac motors. Please check your parts manual for the proper application. Not required for all models. Fits Castex, Nobles, and Tennant vacuums and wet/dry vac models: 3000 Back Pack, 3040 Back Pack, 3240 (22" Dual Motor), 3260 (26" Dual Motor), 3280 Wide Area Vac, 3500, 3520, Magna Twin Series (16, 1600, 2200, 2600, 3000), Typhoon EV, Portapac Series (ServPro Portapac II, Portapac 1, Portapac 2 - BP1402, BP1502), UV-1600HD, UV-2200HD, WV-1500, Strapavac, Mac Trac (BWV3000, WV3000), BPV-1500, and others. One or two required per model (based on the number of vacuum motors in the unit). Priced Each. Replaces Tennant 180626. Our Part Number TN 180626 Also fits Nilfisk Advance 046817, 56406817, 384898, 56384898, Clarke 623382, Karcher Tornado 13104, Windsor 86003510 / 34012)