The two catalogue references
Shark lists NV360 in the compatible model lists for both XFF350 and XHF350. XFF350 is the foam-and-felt pre-motor kit. XHF350 is the HEPA exhaust filter. A listing for a filter set may include one, both or a third-party bundle; read what is actually supplied rather than assuming every set replaces all filters.
Keep the complete model code
Navigator and Lift-Away identify a broader product family. They do not replace NV360. Check the model label and retain any extra letters or suffixes. Shark’s accessory pages publish long explicit fit lists, and those are more useful than a seller’s claim that a part fits all Navigator vacuums.
Compare the job and the shape
The foam-and-felt pieces and the exhaust cartridge sit at different points in the airflow path. They should not be compared as competing alternatives. If the intended replacement has a different frame, seal or attachment, stop and re-check the reference. Never trim foam, remove a gasket or force a filter compartment closed merely to use the wrong part.
Fitment is separate from maintenance
A compatibility table does not establish a universal wash or replacement schedule. Use the NV360 manual for the care method and drying procedure. The official XHF350 product page contains its own replacement guidance, but operating conditions and the specific manual still matter. If suction remains poor after routine permitted maintenance, follow the manufacturer’s troubleshooting process rather than buying an unrelated filter at random.
- Pre-motor foam and felt: check XFF350.
- HEPA exhaust assembly: check XHF350.
- Confirm NV360 on the machine and in the seller’s fit list.
- Compare the delivered part before discarding the old one.
Sources & scope
This is an editorial explanation of the cited material. We do not claim hands-on product testing. Manufacturer instructions for the exact machine take precedence.
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