Bissell Opticlean & Momentum Canister Bag 5 Pk 1 Pre & 1 Post Filter Part -59H6 Bissell Optic-lean & Momentum Canister Vacuum Cleaner Hepa Bags. Includes 5 Dust Bags. 1 Pre-motor filter. 1 Post-motor filter. Fits Model 42Q8, 42Q82 ( Genuine Part # 59H6 )