Best Water Filter Shop Vacuum (2026)

After a brake job the garage floor wears a coat of dust, and after a coolant flush there is a puddle to chase. A wet/dry shop vacuum handles both, but only while its filter holds: a clogged cartridge kills suction, and a dry filter in a wet mess lets water and grit reach the motor. The filter is the small part that decides whether the vacuum works or sulks.

This guide to the best water filter shop vacuum compares replacement cartridge and foam filters from the listings, by fit, filtration, pack size and the wet or dry jobs each maker names.

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Picks for the garage

#	Product	Shop Score	Buy
1	VF4000 Replacement Filter for Ridgid Vacs Wet Dry	9.6/10	Buy on Amazon
2	Replacement Filter For Shop Vac 90304 90585 Vacuum	9.5/10	Buy on Amazon
3	8 Pack VRC2 Vacuum Filters Fit for Armor All 2.5	9.5/10	Buy on Amazon
4	WORKSHOP Wet/Dry Vacs WS14045F Genuine 3-4 Gal.	9.4/10	Buy on Amazon
5	VF7000 Replacement Filter Easy Install for 5 to 20	9.3/10	Buy on Amazon

1

VF4000 Replacement Filter for Ridgid Vacs Wet Dry

Aukdin·9.6/10 Shop Score

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The Shop Score runs from 9.2 to 9.8 and weighs performance (35%), build (25%), value (25%), safety (10%, where it applies) and warranty (5%), using only what the manufacturer and the listing publish. How we pick ›

A 2-pack of HEPA pleated replacement filters for Ridgid wet/dry vacs from 5 to 20 gallons, washable, with 0.3 micron filtration precision.

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Pros

• HEPA pleated cartridge with 0.3 micron filtration precision
• Fits Ridgid wet/dry vacs from 5 to 20 gallons
• Washable by hand, dries naturally, for long use
• Captures sawdust, fine dust, pet dander, lint, pollen, wood shavings and automotive grime

Cons

• No warranty term is stated
• Ridgid only; no Shop Vac, Craftsman or Armor All fit is stated
• 2-pack only; no single filter or larger pack is listed
• No foam sleeve for wet pick-up is included

2

Replacement Filter For Shop Vac 90304 90585 Vacuum

YH Maialan·9.5/10 Shop Score

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The Shop Score runs from 9.2 to 9.8 and weighs performance (35%), build (25%), value (25%), safety (10%, where it applies) and warranty (5%), using only what the manufacturer and the listing publish. How we pick ›

A 4-item kit with a 90304 cartridge filter, 2 foam sleeve filters and a lid, for Shop Vac 5 gallon and above wet/dry vacuums.

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Pros

• Kit holds a 90304 cartridge, 2 foam sleeves and a lid
• Fits Shop Vac most 5 gallon and above wet/dry vacuums
• Washable and reusable, with a stated 99.97% dust capture
• No tools needed for installation

Cons

• The 90304 filter and 90585 foam sleeve cannot be used together
• No concrete warranty term is stated
• Foam sleeve is for wet pick-up only; the cartridge is for dry
• No HEPA claim is stated

3

8 Pack VRC2 Vacuum Filters Fit for Armor All 2.5

Zibopon·9.5/10 Shop Score

i

The Shop Score runs from 9.2 to 9.8 and weighs performance (35%), build (25%), value (25%), safety (10%, where it applies) and warranty (5%), using only what the manufacturer and the listing publish. How we pick ›

An 8-pack of VRC2 cloth filters plus 2 VFF21 foam filters, for Armor All 2.5 gallon and Vacmaster 1.5 to 3.2 gallon wet/dry vacs.

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Pros

• 8 cloth filters plus 2 foam filters in one pack
• Captures 99.97% of debris, dust and pet hair, per the listing
• Foam filters adsorb liquids and keep debris out of the motor
• Fits Armor All 2.5 gallon, Vacmaster 1.5 to 3.2 gallon and Hyper Tough 1.5 gallon vacs

Cons

• No warranty term is stated
• VFF21 foam filter only fits Armor All 2.5 gallon vacs and below
• Small-vac only; no 5 gallon and above fit is stated
• No washable claim is stated

4

WORKSHOP Wet/Dry Vacs WS14045F Genuine 3-4 Gal.

WORKSHOP Wet/Dry Vacs·9.4/10 Shop Score

i

The Shop Score runs from 9.2 to 9.8 and weighs performance (35%), build (25%), value (25%), safety (10%, where it applies) and warranty (5%), using only what the manufacturer and the listing publish. How we pick ›

A genuine WORKSHOP Qwik Lock foam cartridge for 3 to 4 gallon wet debris pick-up, with a foam outer layer and a structural resin core.

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Pros

• Qwik Lock fastening makes removal and installation quick and easy
• Foam outer layer with a structural resin core for longer lasting performance
• Designed for high volume liquid pick-up, cleans easily with water
• Fits WORKSHOP WS0301VA and WS0400DE vacs

Cons

• Wet pickups only; do not pick up dry debris with this filter installed
• No warranty term is stated
• 3 to 4 gallon fit only; no larger vac is stated
• No dust capture figure is stated

5

VF7000 Replacement Filter Easy Install for 5 to 20

XHBAN·9.3/10 Shop Score

i

The Shop Score runs from 9.2 to 9.8 and weighs performance (35%), build (25%), value (25%), safety (10%, where it applies) and warranty (5%), using only what the manufacturer and the listing publish. How we pick ›

A VF7000 replacement filter for Craftsman wet/dry vacs from 5 to 20 gallons made in 1988 and after, adding protection during wet pick-up.

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Pros

• Fits Craftsman 5 to 20 gallon vacs made in 1988 and after
• Keeps water-borne debris out of the motor during wet pick-up
• Lists compatible Craftsman CMXEVBE models
• Easy install, per the title

Cons

• Part number VF7000 and model VF3700 do not match
• No warranty term is stated
• Listing states almost no detail: no pack count, no filtration figure and no washable claim
• No dry-use claim is stated; wet pick-up only

Compared on paper

Specs such as CFM, PSI and torque are the manufacturer’s ratings as listed, collected 12 November 2026. Where a listing contradicts itself, both figures are shown.

How the points were given

Each filter is scored on performance, build, value, safety and warranty, with the weights published on the How We Pick page. A spec the listing does not publish scores nothing.

Shop Scores range from a low of 9.2 to a high of 9.8, with each tool positioned by its weighted points proportionally, and more points always yields a higher score.

What the listings tell you

The listings cover different fits: one for Shop Vac 5 gallon and above, one for Ridgid 5 to 20 gallon vacs, one for Armor All and Vacmaster small vacs, one for WORKSHOP 3 to 4 gallon vacs, and one for Craftsman vacs made in 1988 and after. Two state a 99.97% capture figure, one states HEPA filtration at 0.3 microns, and two state washable and reusable filters with a 3 to 6 month replacement interval. No listing states a warranty term with a concrete period, and one listing contradicts itself on the part number.

Best water filter shop vacuum: how to choose

Match the filter to the vacuum

Start from the part number on the old filter and the tank size on the vacuum. The YH Maialan kit fits Shop Vac 5 gallon and above, the Aukdin filter fits Ridgid 5 to 20 gallon vacs, the Zibopon pack fits Armor All 2.5 gallon and Vacmaster 1.5 to 3.2 gallon vacs, the WORKSHOP filter fits 3 to 4 gallon WORKSHOP vacs, and the XHBAN filter fits Craftsman 5 to 20 gallon vacs made in 1988 and after. A filter that fits the wrong vacuum will not seal, so check the model list before ordering.

Cartridge or foam

A cartridge filter traps dry dust, and a foam sleeve handles wet pick-up. The YH Maialan kit holds both, but the 90304 cartridge and the 90585 foam sleeve cannot be used together, so pick dry or wet before the job. The WORKSHOP filter is a foam cartridge for wet debris only, and the listing states not to pick up dry debris with the wet application filter installed. The Zibopon pack holds 8 cloth filters for dry work and 2 foam filters for wet pick-up.

Filtration: what the numbers mean

Two listings state a 99.97% capture figure: the YH Maialan cartridge traps 99.97% dust, and the Zibopon cloth filters capture 99.97% of debris, dust and pet hair. The Aukdin filter states HEPA pleated filtration at 0.3 microns and names sawdust, fine dust, pet dander, lint, pollen, wood shavings and automotive grime. The WORKSHOP and XHBAN listings state no capture figure, so they suit wet debris and motor protection rather than fine dust.

Wash, dry and replace

Washable filters save money across a season. The Aukdin filter washes by hand and dries naturally, the YH Maialan filters are washable and reusable, and the WORKSHOP foam cleans easily with water. Replace the filter every 3 to 6 months, per the YH Maialan and Aukdin listings, or twice a year, per the WORKSHOP listing, to keep suction strong.

Garage Fit Check

• Measure the filter before ordering: the YH Maialan cartridge is 7.25 inches in diameter and 6.5 inches in height, with a 5.9 inch inner diameter.
• Check the tank size on the vacuum: the picks cover 1.5 to 20 gallon vacs, but each filter fits only its stated models.
• Keep a spare on the shelf: the Aukdin pack holds 2 filters and the Zibopon pack holds 8 cloth filters plus 2 foam filters.
• Pick dry or wet before the job: the 90304 cartridge and the 90585 foam sleeve cannot be used together.

FAQ: garage tools

What does a vacuum filter do?

A vacuum filter traps dust and debris before they reach the motor, and a foam filter keeps water-borne debris out of the motor during wet pick-up. Without a filter, dust passes through the vacuum and suction falls.

How do vacuum filters work?

A cartridge filter catches dust in pleats or cloth as air passes through, while a foam sleeve soaks up liquid and blocks debris in water. The YH Maialan cartridge traps 99.97% dust, and the Aukdin HEPA filter works at 0.3 microns.

Are shop vac filters universal?

No. Each filter fits only its stated models: the YH Maialan kit fits Shop Vac 5 gallon and above, the Aukdin filter fits Ridgid 5 to 20 gallon vacs, the Zibopon pack fits Armor All and Vacmaster small vacs, the WORKSHOP filter fits 3 to 4 gallon WORKSHOP vacs, and the XHBAN filter fits Craftsman vacs made in 1988 and after. Match the part number and the tank size.

How to clean a shop vac filter?

Wash a washable filter by hand and dry it naturally, as the Aukdin listing states, or clean the WORKSHOP foam with water. The YH Maialan filters are washable and reusable. Replace the filter every 3 to 6 months, or twice a year for the WORKSHOP filter, to keep suction strong.

Can you use a wet filter for dry debris?

No. The WORKSHOP listing states not to pick up dry debris with the wet application filter installed, and the YH Maialan listing states the 90304 cartridge and the 90585 foam sleeve cannot be used together. Use the cartridge for dry dust and the foam sleeve for wet pick-up.

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