Bissell part 015-9041 (0159041).
Bottom Tank assembly includes the tank bladder.
Bissell recommends rinsing out the tank bottom after each use.
Replacement bottom tank assembly for Bissell cleaner models:
ProHeat ClearView - 1699, 16991, 16993, 16995, 16997, 1699A, 1699B, 1699F, 1699K ProHeat ClearView - 1699M, 1699N, 1699P, 1699R, 1699S, 1699V, 1699X, 1699Y ProHeat ClearView - 8905 ProHeat CleanView - 7901, 79016, 79019, 7901B, 7901P, 7901R, 7901T, 7901X ProHeat CleanView - 7920P ProHeat ClearView - 16998 ProHeat Pet - 8910, 89101, 89102, 89103, 89104, 89106, 8910J, 8910W ProHeat Pet - 89108 ProHeat Pro-Tech - 7920 ProHeat Self Propelled - 7950 PowerLifter - 1620, 16603 PowerLifter - 8806D, 8806M PowerSteamer - 16945 PowerSteamer PowerBrush - 1685, 1692, 1693W, 1694, 1694W PowerSteamer PowerBrush - 1696 PowerSteamer PowerBrush - 8805R, 8806S PowerSteamer Pro - 1697, 16971, 16973, 16977, 1697A, 1697M, 1697Q, 1697R, 1697W PowerSteamer Pro - 1698, 16981 PowerSteamer Pro - 8804, 8804M, 8804T 
