DEWALT 2-Gallon 20V Cordless/Corded Wet-Dry vs DEWALT 6-Gallon 20V Cordless Wet/Dry: Spec Comparison
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This dewalt 2 gallon 20v cordless corded wet dry vs 6 gallon 20v cordless comparison helps you choose the right shop vac. Both tools run on the 20V MAX battery system and handle wet or dry messes. They share onboard storage for accessories. The main difference is tank size and power options. One model offers a smaller, lighter tank with corded capability. The other provides a larger tank with blower functionality. You need to decide which capacity and features fit your jobs.
Key differences
| Aspect | DEWALT 2-Gallon 20V Cordless/Corded Wet-Dry Vacuum | DEWALT 6-Gallon 20V Cordless Wet/Dry Vacuum |
|---|---|---|
| Capacity | 2 Gallon | 6 Gallon |
| Power Source | Cordless and corded | Cordless |
| Weight | 1 pounds | 27.6 pounds |
| Filtration Type | HEPA | Cartridge and foam filter |
| Special Features | On-board storage | Built-in blower |
Which one should you choose?
Choose DEWALT 2-Gallon 20V Cordless/Corded Wet-Dry Vacuum if
- You need a lightweight vacuum for quick, small cleanups.
- You want the option to plug into a wall outlet.
- You require HEPA filtration for finer dust.
Choose DEWALT 6-Gallon 20V Cordless Wet/Dry Vacuum if
- You need a larger tank for bigger debris loads.
- You want to use the vacuum as a blower for leaves.
- You prefer a dedicated cordless tool for portability.
Verdict: The 2-Gallon model suits users who prioritize light weight and corded backup power. The 6-Gallon model is better for those needing more capacity and blower versatility. Choose based on whether you value portability or tank size.
Spec Comparison: 2-Gallon vs 6-Gallon
Capacity
The DEWALT 6-Gallon 20V Cordless Wet/Dry Vacuum offers a 6-gallon tank, while the DEWALT 2-Gallon 20V Cordless/Corded Wet-Dry Vacuum has a 2-gallon tank. A larger tank means you can collect more debris, dust, or liquid before needing to empty it. This reduces interruptions during larger jobsites or extended cleanup sessions. The 6-gallon model is better for substantial messes. The 2-gallon unit is sufficient for smaller, quick tasks. If you frequently clean large areas or heavy debris, the larger capacity is a practical advantage. For minimal messes, the smaller tank may be adequate.
Power Source
The DEWALT 2-Gallon 20V Cordless/Corded Wet-Dry Vacuum supports both cordless and corded operation. You can use a 20V MAX battery or plug it into a wall outlet. The DEWALT 6-Gallon 20V Cordless Wet/Dry Vacuum is cordless only. It relies entirely on the 20V MAX battery system. If you have limited power access at a jobsite, the cordless-only model works well. However, if you need continuous power without battery swaps, the dual-power option on the 2-gallon model is useful. This flexibility matters for users who switch between locations frequently or lack reliable outlet access.
Weight
Weight affects portability and ease of movement. The DEWALT 2-Gallon 20V Cordless/Corded Wet-Dry Vacuum weighs 1 pound. The DEWALT 6-Gallon 20V Cordless Wet/Dry Vacuum weighs 27.6 pounds. The lighter 2-gallon unit is significantly easier to carry, lift, and store. It is ideal for users who need to move the vacuum frequently or store it in tight spaces. The heavier 6-gallon unit is more substantial, which may impact how often you move it. For pure portability, the lighter model is clearly superior. The weight difference is substantial and impacts handling.
Filtration
Filtration type impacts air quality and maintenance. The DEWALT 2-Gallon 20V Cordless/Corded Wet-Dry Vacuum includes a HEPA filter. HEPA filters capture fine particles, improving air quality during cleanup. The DEWALT 6-Gallon 20V Cordless Wet/Dry Vacuum includes a cartridge filter and a foam filter. These filters handle dust and debris but are not specified as HEPA. If you are concerned about fine dust or allergens, the HEPA filter in the 2-gallon model is a benefit. For general debris, both units provide filtration. The HEPA specification gives the 2-gallon model an edge in air quality management.
Blower Function
Some vacuums include a blower mode for versatility. The DEWALT 6-Gallon 20V Cordless Wet/Dry Vacuum features a built-in blower. You can switch to blower mode to clear leaves, dust, or debris from driveways or patios. The DEWALT 2-Gallon 20V Cordless/Corded Wet-Dry Vacuum does not list a blower function in its specifications. If you need to blow debris away in addition to vacuuming, the 6-gallon model offers this extra utility. For users who only need suction, this feature is less critical. The blower function adds value for outdoor or garage cleanup tasks.
Dimensions
Physical size affects storage and maneuverability. The DEWALT 2-Gallon 20V Cordless/Corded Wet-Dry Vacuum measures 12.3 inches in width, 13.1 inches in height, and 17.3 inches in length. The DEWALT 6-Gallon 20V Cordless Wet/Dry Vacuum measures 17.2 inches in width, 23.9 inches in height, and 18.5 inches in length. The 2-gallon unit is more compact in all dimensions. It fits into smaller storage spaces and is easier to navigate in tight areas. The 6-gallon unit is larger, which may limit where you can store it. For compact storage and easy handling in confined spaces, the smaller dimensions are advantageous.
Which DEWALT 20V Shop Vac Suits You
Users needing corded backup power
This model supports both cordless and corded operation. You can plug it in for unlimited runtime or use a 20V MAX battery for portability. The 2-gallon tank is lighter and easier to move. It includes a HEPA filter for finer dust control. Choose this if you want flexible power options for small, frequent cleanups.
Those needing blower function and capacity
This vacuum features a built-in blower mode for clearing leaves and debris. The 6-gallon tank holds more dust and liquid, reducing emptying frequency. It weighs 27.6 pounds, making it sturdier for larger jobs. You get multiple nozzles and a cartridge filter. Pick this for heavier-duty tasks and outdoor clearing.
Buyers prioritizing lightweight portability
Weighing just 1 pound without the battery, this unit is extremely light. Its compact 2-gallon capacity fits small spaces easily. The integrated hose and accessory storage keep things organized. It is ideal for quick car cleanups or small spills. Choose this if you need a vacuum that is easy to carry and store.
The products compared
DEWALT 2-Gallon 20V Cordless/Corded Wet-Dry Vacuum
Best for: Light-duty cleanup and small jobsites
- Power Source
- Cordless and corded
- Battery Voltage
- 20V MAX
- Capacity
- 2-gallon
- Weight
- 1 pounds
- Filtration Type
- HEPA
- Features
- HEPA Filtration, Wet/Dry
View on Amazon: DEWALT 2-Gallon 20V Cordless/Corded Wet-Dry Vacuum Affiliate link
This DEWALT unit offers both corded and cordless power via a 20V MAX battery system. It features a 2-gallon tank capacity and includes a washable HEPA filter for effective dust control. The vacuum comes with a 5-foot hose, a wide gulper nozzle, a crevice tool, and onboard accessory storage. Its compact dimensions make it easy to transport around jobsites. It suits users who need a lightweight, versatile tool for smaller cleanup tasks.
Pros
- Dual corded and cordless power options
- 2-gallon tank capacity for moderate debris
- Includes washable HEPA filter
- Onboard accessory storage for tools
Cons
- Smaller 2-gallon capacity limits continuous use
- Battery is sold separately
- 1-pound weight rating appears unusually low for this category
Good fit if
- You need a lightweight vacuum for small jobsites
- You already own DEWALT 20V MAX batteries
- You want a wet/dry vacuum with HEPA filtration
Skip if
- You require a larger tank for heavy debris loads
- You do not have compatible 20V batteries
- You need a vacuum with a longer hose reach
Verdict: DEWALT 2-Gallon 20V Wet-Dry Vacuum is a compact, dual-power tool for users who already use DEWALT batteries and need to clear small spills or dust quickly. It fits tight spaces and light-duty cleanup better than larger shop vacs.
DEWALT 6-Gallon 20V Cordless Wet/Dry Vacuum
Best for: mixed wet and dry cleanup tasks
- Power Source
- Cordless
- Battery Voltage
- 20V MAX
- Capacity
- 6 Gallon
- Weight
- 27.6 pounds
- Features
- Blower
- Dimensions
- 18.5 × 17.2 × 23.9 inches
View on Amazon: DEWALT 6-Gallon 20V Cordless Wet/Dry Vacuum Affiliate link
The DEWALT 20V MAX Cordless Wet Dry Shop Vac offers 6-gallon capacity for medium cleanups. Weighing 27.6 pounds, it provides portable suction for dust, debris, and liquids. The unit includes a blower function for outdoor use. It is tool-only, requiring a separate 20V MAX battery. This model suits users who need versatile cleaning power without a power outlet.
Pros
- 6-gallon tank reduces emptying frequency
- 20V MAX cordless power source
- Built-in blower mode for debris
- Handles both wet and dry messes
Cons
- Heavier at 27.6 pounds
- Battery and charger sold separately
- Lacks corded power option
Good fit if
- You need to clean areas without power outlets
- You want a single tool for wet and dry spills
- You already own DEWALT 20V MAX batteries
Skip if
- You prefer a lighter unit under 20 pounds
- You do not own compatible DEWALT batteries
- You require a larger capacity for heavy debris
Verdict: DEWALT 6-Gallon 20V Cordless Wet/Dry Vac fits users who already have DEWALT 20V batteries and need a versatile tool for mixed wet and dry messes in garages or workshops.
Specifications side by side
| Spec | DEWALT 2-Gallon 20V Cordless/Corded Wet-Dry Vacuum | DEWALT 6-Gallon 20V Cordless Wet/Dry Vacuum |
|---|---|---|
| Power Source | Cordless and corded | Cordless |
| Battery Voltage | 20V MAX | 20V MAX |
| Capacity | 2-gallon | 6 Gallon |
| Weight | 1 pounds | 27.6 pounds |
| Filtration Type | HEPA | not stated |
| Voltage | 20V | 20V |
| Features | HEPA Filtration, Wet/Dry | Blower |
| Power Type | Corded | not stated |
| Dimensions | 17.3 × 12.3 × 13.1 inches | 18.5 × 17.2 × 23.9 inches |
| Size | One Size | 6 Gallon |
| Color | Black, Yellow | Yellow |
| Model | DCV581H | DXCVXA06B |
Frequently asked questions
Which DEWALT 20V shop vac is smaller and lighter?
The DEWALT 2-Gallon 20V Cordless/Corded Wet-Dry Vacuum is the more compact option. It measures 17.3 inches in length and weighs just 1 pound. The 6-Gallon model is significantly larger, measuring 18.5 inches long and weighing 27.6 pounds. The smaller unit fits tight spaces better.
Does the smaller DEWALT vacuum have HEPA filtration?
Yes, the DEWALT 2-Gallon 20V Cordless/Corded Wet-Dry Vacuum includes HEPA filtration. This feature helps capture fine dust particles during cleanup. The 6-Gallon model does not list HEPA filtration in its specifications. If fine dust control is critical, the 2-Gallon unit has this advantage.
Can the DEWALT 6-Gallon vacuum be used as a blower?
Yes, the DEWALT 6-Gallon 20V Cordless Wet/Dry Vacuum features a blower function. This adds versatility for clearing debris from workspaces. The 2-Gallon model does not list blower capabilities in its attributes. You can use the larger unit for both suction and blowing tasks.
Which model supports corded operation for unlimited runtime?
The DEWALT 2-Gallon 20V Cordless/Corded Wet-Dry Vacuum supports corded power. You can plug it in for continuous use or switch to a 20V MAX battery. The 6-Gallon model is listed only as cordless. If you need corded backup, choose the 2-Gallon option.
What is the difference in tank capacity between these two vacuums?
The DEWALT 6-Gallon model holds 6 gallons of debris or liquid. The DEWALT 2-Gallon model holds only 2 gallons. The larger tank allows for longer cleanup sessions without emptying. The smaller tank is easier to manage for quick, light-duty jobs.
Is the DEWALT 2-Gallon vacuum suitable for small jobsites?
Yes, the DEWALT 2-Gallon 20V Cordless/Corded Wet-Dry Vacuum is best for light-duty cleanup and small jobsites. Its compact size and low weight make it easy to move. It is ideal for clearing small spills or dust quickly in confined areas.
Which vacuum is better for mixed wet and dry messes in a garage?
The DEWALT 6-Gallon 20V Cordless Wet/Dry Vacuum is suited for mixed wet and dry cleanup tasks in garages or workshops. Its larger capacity handles more substantial messes. The 2-Gallon unit is better for smaller, lighter duties.
Do both vacuums use the same battery system?
Yes, both models run on the 20V MAX battery system. This allows you to use existing DEWALT 20V batteries with either vacuum. Both units are designed for users who already have DEWALT batteries in their toolkit.

