[Lifetime Warranty] 90398 Cartridge Filter and 90585 Foam Sleeve Filter - Replacement Filter for Shop-Vac 90398, 903-98, 9039800, 903-98-00, 5 Gallon and Above Wet/Dry Vacuum Cleaners
Replacement 90398 cartridge filter, two 90585 foam sleeve filters, and a cleaning brush for Shop-Vac wet/dry vacuums.
Replacement 90398 cartridge filter, 90585 foam sleeve, and cleaning brush for Shop-Vac wet/dry vacuums.
Replacement 90398 cartridge filter, 90585 foam sleeve, and cleaning brush for Shop-Vac wet/dry vacuum cleaners.
Person cleaning a 90398 cartridge filter with a brush to demonstrate it is washable and reusable for wet/dry vacuums.
90398 replacement cartridge filter for Shop-Vac wet/dry vacuums with close-up view of non-woven fabric material.
90398 cartridge filter and 90585 foam sleeve filter set with cleaning brush for wet/dry vacuum cleaners.
Woman using a cordless stick vacuum cleaner on a rug with text overlay promoting economical DIY repair.
Replacement 90398 cartridge filter, two 90585 foam sleeve filters, and a cleaning brush for Shop-Vac wet/dry vacuums.
Replacement 90398 cartridge filter, 90585 foam sleeve, and cleaning brush for Shop-Vac wet/dry vacuums.
Replacement 90398 cartridge filter, 90585 foam sleeve, and cleaning brush for Shop-Vac wet/dry vacuum cleaners.
Person cleaning a 90398 cartridge filter with a brush to demonstrate it is washable and reusable for wet/dry vacuums.
90398 replacement cartridge filter for Shop-Vac wet/dry vacuums with close-up view of non-woven fabric material.
90398 cartridge filter and 90585 foam sleeve filter set with cleaning brush for wet/dry vacuum cleaners.
Woman using a cordless stick vacuum cleaner on a rug with text overlay promoting economical DIY repair.
Lifetime Warranty

[Lifetime Warranty] 90398 Cartridge Filter and 90585 Foam Sleeve Filter - Replacement Filter for Shop-Vac 90398, 903-98, 9039800, 903-98-00, 5 Gallon and Above Wet/Dry Vacuum Cleaners

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90398 Vacuum Filter and 90585 Foam Sleeve Filter

Key Features

  • Package contains one cartridge filter and one foam sleeve filter.
  • Cartridge filter is designed for capturing fine dust and dry debris.
  • Foam sleeve is intended for wet pickup applications.
  • Filters are designed to be washable and reusable for extended life.

Replaces / Cross-Reference Part Numbers

  • Cartridge Filter: 90398, Type AA
  • Foam Sleeve Filter: 90585, VF2001

Compatibility & Fitment

  • Fits most Shop-Vac, Vacmaster, and Genie brand wet/dry vacuums 5 gallons and larger.
  • Compatible with vacuums that utilize a filter with dimensions of approximately 6 inches in height and 8.25 inches in diameter.
  • Designed for models requiring a Type AA 90398 cartridge filter and a 90585 foam sleeve.

When to Replace

  • Replace every 3 to 6 months, depending on usage and the type of debris collected.
  • Replace immediately if the filter media is torn or damaged.
  • Replace if a noticeable decrease in suction power persists after cleaning.

Installation Tips

  • Disconnect the vacuum from its power source before filter installation.
  • For dry pickup: Place the 90585 foam sleeve over the filter cage, then install the 90398 cartridge filter over the foam sleeve.
  • For wet pickup: Use only the 90585 foam sleeve on the filter cage. Remove the cartridge filter.
  • If washing the cartridge filter, allow it to air dry completely before reinstallation.

FAQ

This filter set is designed for most Shop-Vac wet/dry vacuums with a 1 to 4-gallon capacity. It replaces part numbers 90398, 903-98, 9039800, 903-98-00, and 118692.
Yes, this filter is not compatible with the following Shop-Vac models: J200A, K250, KA450, L250, MACM-250, MACS-200D, MC150A, MC12V1800, 1x1, Micro, HangOn, HangUp Mini, All Around, and All Around Ez.
The foam sleeve filter is specifically intended for wet pick-up applications. It prevents liquid from damaging the vacuum motor when you are cleaning up spills or wet messes. Always remove the paper cartridge filter before installing the foam sleeve for wet vacuuming.
You should replace the cartridge filter if you notice a significant loss of suction power, if the filter appears torn or punctured, or if you can no longer remove fine dust and debris from the pleats by tapping or brushing it. A clogged filter forces the motor to work harder, which can lead to overheating.
The cartridge filter typically secures to the filter cage using a retainer cap or a screw-down nut provided with your original vacuum unit. Ensure the rubber seal at the base of the filter is seated firmly against the vacuum housing to maintain an airtight seal.
The foam sleeve can be rinsed with water and mild soap; ensure it is completely air-dried before reinstalling. While some cartridge filters can be gently cleaned by tapping them against a hard surface or using compressed air from the inside out, they should be replaced once they become heavily soiled or if the paper material begins to degrade.