Fits select Bissell upright vacuum PowerForce series and PowerGlide Platinum series.
Bissell pre motor filter kit replacement part number 203-1089 (2031089). Made of foam.
Examples of Bissell upright vacs that utilize filter kit 203-1089 include but are not limited to:
PowerForce 3537 series, 3525 series, 3530 series, 3522 series, 71Y7 series, 71Y7W, 46E5
PowerGlide Platinum 3545 series, 6592 series, 35452