Despite purchasing the Dttery Filter Replacement for my Shark vacuum, I found myself struggling to navigate the complicated installation process. After much frustration and a call to customer service, the filter was finally in place. However, I wasn't blown away by its performance - I still noticed dust and debris around my home. On the plus side, the filter did seem to successfully trap pet hair. Overall, the Dttery Filter Replacement For Shark CZ350 CZ351 CZ2001 Vertex Canister Pet Bagless DuoSee full review