Shark XFF350 vs. XFF500
Shark Navigator and Rotator vacuums can use similar-looking foam, felt, and HEPA sets. The part family is the safer key.
Fit rule: The full appliance model and printed replacement part number take priority over appearance alone.
XFF350 / XHF350 family
Commonly associated with Navigator Lift-Away models such as NV350, NV351, NV352, NV356E, and NV360.
XFF500 / XHF500 family
Commonly associated with Rotator Pro Lift-Away models such as NV500, NV501, NV502, and NV505.
Do not shop by color
Two blue or white filter sets can have different dimensions. Match the vacuum model and the printed filter part number.