Yes. The following site shows the filters and which is used for what. Due to potential motor damage, I wouldn't use it without the proper filter.
http://www.shopvac.com/shopvac-accessories/Departments/Wet-Pickup.aspx

Jan 03, 2011 | Shop Vac 584-06-00 Canister Wet/Dry Vacuum

1 Answer

Shopvac 90L400 quit working (4 years old). Thought the switch was bad but not the problem. I read that there is a fuse link in the motor that frequently burns up. I tried to take motor apart but not sure...

by pass the switch and take power right to the motor leads.. that should tell you if the motor is ok.. have not seen fuse link on a vac motor.. graingers has new motors, but not inexpensive

Nov 30, 2009 | Vacuums

1 Answer

I was using the shopvac and it just quit. (changed filter, still

The brushes that make contact with the motor's armature need to be cleaned. If you get into the motor and find that the armature is scored or burnt then you'll have to replace the motor.

Oct 06, 2009 | Shop Vac 925-13 Canister Wet/Dry Vacuum

2 Answers

I have a 10 gallon Shop.Vac 3.0 but I don't have the instruction booklet. Do I take off the pleated "paper" filter to vacuum up water? Do I use the vac with no filter for liquid?

Yes you should remove the filter for liquids. If the filter is not removed the internal float stop will not operate correctly. This will lead to the liquid being drawn up into the impeller and around the motor.
However I still like to have something in place because in most instances the liquid you vacuum up will not be without some solids. So I like to use a foam insert. Places like Home Depot carries a universal insert that works great.
Hope that helps.

Sep 17, 2009 | Shop Vac ShopVac 3 HP 2 Stage 10...

1 Answer

Using shop vac 52722-90 for wet applications

yes, the foam filter is what you should use, also make sure you remove any bag, or paper filter, the water would make it fall apart.

Sep 16, 2009 | Shop Vac ShopVac 3 HP 2 Stage 10...

3 Answers

Need new switch for Shopvac QSP Pro 10 gallon unit

I just went through the same problem with a Shop Vac. The switch is easy to replace but not easy to find. After removing the switch, I found a match made by Sigma Switches. They directed me to contact a local RV dealer and look in either their Coast Supply or Stag/Parkway Supply catalogs for the appropriate switch (an H2-28 in my case for a QPL45 Shop Vac). After ordering the switch and $5 later, it snaps in like the original with no problems. Certainly beats $70 for a whole new motor assembly.

Dec 28, 2008 | Shop Vac 285-00-10 Back Pack Vac Wearable...

3 Answers

Cannot find a filter

In a pinch a discarded flannel pajama sleeve can be employed as a filter on your shop-vac. grab up an end and twist it together and fasten with a piece of wire. the open part slips over the cage of the vacuum and fastens with a large flat rubber band. I'll try to find a source for a filter for you and will get back to you.

Oct 01, 2007 | Shop Vac 584-06-00 Canister Wet/Dry Vacuum

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Shopvac 90L400 quit working (4 years old). Thought the switch was bad but not the problem. I read that there is a fuse link in the motor that frequently burns up. I tried to take motor apart but not sure...

I was using the shopvac and it just quit. (changed filter, still

I have a 10 gallon Shop.Vac 3.0 but I don't have the instruction booklet. Do I take off the pleated "paper" filter to vacuum up water? Do I use the vac with no filter for liquid?

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Shopvac 3331.5H motor head filter - Shop Vac 333-32-08 Blower Vac Wet/Dry Vacuum

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Related Questions:

Can I use a universal filter for my four gallon rigid shopvac?

I have a old Shop-vac Stainless Tank QSP CONTRACTOR Wet/Dry Vac Model QPL625 Original #52722-67 Motor arcing and locking up can I get replacement parts?

DO I NEED TO USE THE FOAM SLEEVE WHEN PICKING UP WATER WITH MY SHOPVAC

Do you need a special filter for wet application

Shopvac 90L400 quit working (4 years old). Thought the switch was bad but not the problem. I read that there is a fuse link in the motor that frequently burns up. I tried to take motor apart but not sure...

I was using the shopvac and it just quit. (changed filter, still

I have a 10 gallon Shop.Vac 3.0 but I don't have the instruction booklet. Do I take off the pleated "paper" filter to vacuum up water? Do I use the vac with no filter for liquid?

Using shop vac 52722-90 for wet applications

Need new switch for Shopvac QSP Pro 10 gallon unit

Cannot find a filter

Not finding what you are looking for?

333-32-08 Blower Vac Wet/Dry Vacuum

Can I use a universal filter for my four gallon rigid shopvac?

Open Questions:

shop vac model 3331.5 H owner manual

owner manual for shop vac 333 1.5 removable blower

how do you tighten the flywheel on top of the motor (3331.5H)

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