Review on iSingo Shark LZ601 Filters - Compatible with Shark APEX UpLight Lift-Away DuoClean Stick Vacuum LZ600, LZ601, LZ602, LZ602C - Compare to Part # XFFLZ600 (4+2+2) by Angel Young

I would give 5 stars but the lower plastic pre-filter does not fit my vacuum as advertised. Will. The small lip does not extend far enough to allow this filter to fit snugly. Decided to give it a try as these sharks are out of stock and I tested them after sucking them. It looks like the dirt got to where the motor is, so I'm not sure I want to keep using it because I don't want a bunch of little dirt particles getting into my vacuum motor. I am disappointed that it does not fit my LZ601 device. Foam filters are just as good as a post engine filter.