DeWalt Wet Dry Shop Vacs: Cordless, Compact and Big Tank
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A DeWalt wet dry vacuum is a smart buy for anyone whose garage doubles as a workshop, a sim racing bay or a game room, because the same machine handles sawdust, spilled drinks and flooded floors. The right DeWalt shop vac comes down to three choices: cordless or corded, how big a tank you need before emptying, and how loud a vac you can live with in a shared space. Peak horsepower and tank size drive suction and capacity, but noise is what you notice every time you switch it on.
This DeWalt shop vac comparison covers six models. One is the 20V MAX cordless and corded 2-gallon vac, four are corded poly-tank vacs at 4, 6, 9 and 12 gallons, and one is the 6-gallon StealthSonic, which DeWalt says is 50 percent quieter than its current model. We compared listings, specifications and included accessories rather than testing suction, and we note where listings are thin or odd.
JOB SHEET
Which DeWalt Shop Vac Should You Buy
- Cordless spot cleaning around a desk or car: DEWALT 20V MAX Shop Vacuum Wet and Dry (DCV581H)
go to no. 01 - A compact vac that stores like a toolbox: DEWALT 4 Gal. 5.0 HP Poly Wet/Dry Vacuum
go to no. 02 - The largest tank for big garage and outdoor jobs: DEWALT 12 Gal. 5.5 HP Poly Wet/Dry Vacuum
go to no. 03 - Quiet cleaning in a game room or shared garage: DEWALT STEALTHSONIC Wet Dry Shop Vac
go to no. 04 - A mid-size shop vac with blower and drain: DEWALT 9 Gallon Wet/Dry VAC
go to no. 05 - A straightforward 6-gallon vac for garage and vehicle: DEWALT 6 Gal. 4.0 HP Poly Wet/Dry Vacuum
go to no. 06
No. 01
of 6
Dewalt
DEWALT 20V MAX Shop Vacuum Wet and Dry

9.0
/10
Our score
Affiliate link. Price and stock live at Amazon and change there, not on this page.
Best for
Quick cordless cleanups around a setup
Pros
- Cordless on 20V MAX or corded
- HEPA filter included
- Wide gulper nozzle and crevice tool
- Onboard accessory storage
Cons
- Small 2-gallon tank
- Battery and charger sold separately
The DEWALT 20V MAX Shop Vacuum Wet and dry vac (DCV581H) is the only cordless model here. It runs on a 20V MAX battery or on a cord, so you can grab it for a quick cleanup and plug it in when the battery runs down. It is sold as a tool only, so the battery and charger are extra.
The tank holds 2 gallons, which DeWalt pitches for jobs like emptying a toilet or clogged pipe. It comes with a HEPA filter that is washable and reusable, a wide gulper nozzle, a crevice tool and onboard accessory storage. The hose is 5 feet long and 1-1/4 inches in diameter, and the listing shows two power levels and an 80 dB noise rating. It also lists a “maximum suction” of 31 feet, a figure that does not follow standard suction units, so we would not compare it to the others.
This DeWalt 20V MAX shop vacuum suits owners already on the 20V platform who want to clear dust from a PC desk or a car interior without a cord. For anything bigger than spot cleaning, the tank fills fast and a corded model is more practical. See our guide to the DeWalt cordless wet dry vacuum options for more battery choices.
No. 02
of 6
Dewalt
DEWALT 4 Gal. 5.0 HP Poly Wet/Dry Vacuum

8.2
/10
Our score
Affiliate link. Price and stock live at Amazon and change there, not on this page.
Best for
Compact vac that carries like a toolbox
Pros
- 0 peak HP in a 4-gallon tank
- Built-in 20 ft cord
- Fine-dust cartridge filter
Cons
- Only two wheels
- Listing gives few feature details
The DEWALT 4 Gal. 5.0 HP Poly wet/dry vacuum (DXV04T) is the compact corded pick. DeWalt describes a toolbox shape with an easy carry handle, so it sits on a shelf rather than rolling around the floor. It still has 5.0 peak HP, the same as the StealthSonic and 9-gallon models.
It uses a fine-dust cartridge filter for small, dry debris and wet materials, a large water-resistant on/off switch, a built-in 20-foot power cord and accessory storage. The listing shows two wheels, a single speed and an 80 dB noise rating, and it does not specify hose length or which accessories are included beyond the title’s “hose and accessories.” This DeWalt 4 gallon shop vac suits a small garage or apartment storage space where footprint matters more than capacity.
No. 03
of 6
Dewalt
DEWALT 12 Gal. 5.5 HP Poly Wet/Dry Vacuum

8.4
/10
Our score
Affiliate link. Price and stock live at Amazon and change there, not on this page.
Best for
Big garage and outdoor messes
Pros
- 12-gallon tank
- 5 peak HP
- Blower function and large drain port
- 20 ft cord, 7 ft hose
Cons
- Rated at 80 dB
- Bulkiest option here
The DEWALT 12 Gal. 5.5 HP Poly wet/dry vacuum (DXV12P) is the capacity and power leader. It has the largest tank at 12 gallons and the highest listed rating at 5.5 peak HP from a single-stage motor. DeWalt notes that peak horsepower is an industry comparison term, not operating horsepower.
The specs call out a large drain port, a blower function and a listed maximum suction of 85 inches, the same figure as the 9-gallon model. It has a 20-foot cord and a 7-foot hose, and it is rated for indoor and outdoor use at 80 dB. This DeWalt 12 gallon shop vac suits big cleanups: water in a basement, leaves in a garage or a full shop floor of sawdust. The trade-offs are size and noise, so if you share the space or care about volume, look at the StealthSonic.
- 12-gallon tank, 5.5 peak HP
- Blower function and large drain port
- 20 ft cord and 7 ft hose
- Indoor and outdoor rated
No. 04
of 6
Dewalt
DEWALT STEALTHSONIC Wet Dry Shop Vac

9.4
/10
Our score
Well rated
Scored 9.2/10 or higher
Affiliate link. Price and stock live at Amazon and change there, not on this page.
Best for
Game-room garages and shared spaces
Pros
- Rated at 65 dB, quietest here
- Over 17 ft cleaning reach
- Large accessory kit with foam filter
- 360-degree non-marring casters
Cons
- Shorter 10 ft cord
- Single power level
The DEWALT STEALTHSONIC Wet Dry Shop Vac (DXV06P-QT) is the one to consider if your garage is also where you play, stream or hang out. DeWalt says its quiet motor is 50 percent quieter and lasts three times longer than its current model, and the listed noise level is 65 dB, well below the 78 to 80 dB of the other corded vacs here.
It has a 5 HP motor and a 6-gallon tank. Reach is over 17 feet thanks to a 10-foot cord, a 7-foot, 1-7/8 inch hose and two extension wands. It rolls on four 360-degree rubberized non-marring casters, which matters on finished garage floors or mats. The accessory kit is the most complete here: washable cartridge filter, disposable dust bag, foam filter for wet pickup, floor brush, round brush, utility nozzle, crevice nozzle, tool adaptor and accessory bag.
This DeWalt StealthSonic shop vac suits anyone who wants to clean without drowning out a conversation or a game. Its 10-foot cord is shorter than the 20-foot cords on the 4 and 12-gallon models, so plan on an extension cord for larger rooms.
No. 05
of 6
Dewalt
DEWALT 9 Gallon Wet/Dry VAC

8.8
/10
Our score
Affiliate link. Price and stock live at Amazon and change there, not on this page.
Best for
Mid-size shop needing blower and drain
Pros
- 9-gallon tank with built-in drain
- Blower port with nozzle adaptors
- 10 ft cord with wrap
- Rubberized casters
Cons
- Rated at 78 dB
- Listing uses list oddly unrelated
The DEWALT 9 Gallon Wet Dry VAC (DXV09PA) sits between the 6 and 12-gallon models with a 9-gallon tank and a 5 peak HP motor. Its built-in blower port can clear sawdust and leaves, and three extra nozzle adaptors convert it into an air pump.
DeWalt lists an upgraded, more flexible hose, a 10-foot cord with cord wrap, rubberized casters, strong carry handles, a water-resistant switch, an accessory bag and a built-in tank drain for emptying liquids. It stands 22.25 inches tall and is rated at 78 dB. The listing oddly names uses like apparel, quilting and nursery, and it lists indoor use only while also recommending outdoor use, so treat those fields loosely. This DeWalt 9 gallon wet dry vac suits a working garage where you want blower function and easy draining without a full 12-gallon drum.
No. 06
of 6
Dewalt
DEWALT 6 Gal. 4.0 HP Poly Wet/Dry Vacuum

8.4
/10
Our score
Affiliate link. Price and stock live at Amazon and change there, not on this page.
Best for
Mid-size garage and vehicle cleaning
Pros
- 6-gallon tank
- Rated at 79 dB
- Uses include garage, truck and van
Cons
- Lower 4.0 peak HP
- Listing gives few feature details
The DEWALT 6 Gal. 4.0 HP Poly wet/dry vacuum (DXV06PL) is the plain 6-gallon option. It has a 4.0 peak HP motor, a cartridge filter and a canister design, with recommended uses covering hard floor, carpet, rugs, garages, trucks and vans. The listing rates it at 79 dB.
The listing is thin. It does not specify cord length, hose length or the exact accessories included. This DeWalt 6 gallon shop vac suits someone who wants mid-size capacity for garage and vehicle cleaning without paying for the StealthSonic’s quiet motor. If quiet operation matters, the StealthSonic offers the same tank size with a lower noise rating. For lighter car detailing, a DeWalt handheld vacuum may be all you need.
What Sets These Models Apart
| Model | Tank | Power | Listed noise |
|---|---|---|---|
| 20V MAX DCV581H | 2 gal | 20V MAX battery or corded | 80 dB |
| 4 Gal. DXV04T | 4 gal | 5.0 peak HP, corded | 80 dB |
| 12 Gal. DXV12P | 12 gal | 5.5 peak HP, corded | 80 dB |
| StealthSonic DXV06P-QT | 6 gal | 5 HP, corded | 65 dB |
| 9 Gallon DXV09PA | 9 gal | 5 peak HP, corded | 78 dB |
| 6 Gal. DXV06PL | 6 gal | 4.0 peak HP, corded | 79 dB |
Figures in this table are copied from the Amazon listings for these models.
NOTES
Buying Tips for DeWalt Wet Dry Vacuums
Pick tank size for your biggest mess, not your average one. A 2 or 4-gallon vac is great for dust and small spills, but water in a basement or a full day of sawdust fills a small tank quickly. For wet pickup, remember that listed tank capacity refers to tank volume, not the usable capacity during operation, as DeWalt notes on several listings.
Take noise seriously in shared spaces. The gap between 65 dB and 80 dB is large on the decibel scale, and it is the difference between a vac you can run while someone is gaming nearby and one that ends the session. That is the StealthSonic’s main advantage.
Finally, swap filters for wet work. Cartridge filters handle dust, but the StealthSonic includes a foam filter specifically for wet pickup, and it is good practice to use the right filter to protect the motor.
FAQ
Which DeWalt shop vac should I buy for a garage game room?
The StealthSonic, since it lists 65 dB and a full accessory kit in a 6-gallon tank.
Is there a cordless DeWalt wet dry vacuum?
Yes. The DCV581H runs on a 20V MAX battery or a cord, with a 2-gallon tank. Battery and charger are sold separately.
Which DeWalt shop vac is the most powerful?
The 12-gallon DXV12P lists the highest rating at 5.5 peak HP.
Which models have a blower function?
The 12-gallon and 9-gallon listings both mention a blower function.
Which has the longest power cord?
The 4-gallon and 12-gallon models list 20-foot cords. The StealthSonic and 9-gallon list 10 feet.



