Compatible connection
A pressure-washer spray gun with a matching female 1/4-inch quick-connect outlet. Confirm the gun, hose, washer and cannon can be used together.
Alpha 4.0 Quick-Lock 1 L Foam Cannon — 1/4-in Connect
$39.99 USD
Regular price
$39.99 USD
Sale price
$39.99 USD
Regular price
Unit price
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NUVEREN · Pressure-washer car care
More control.
Less guesswork.
The Alpha 4.0 foam cannon pairs a 1 L smoky-clear bottle with a 1.2 mm orifice, adjustable solution draw and adjustable spray fan. It connects to a compatible pressure-washer spray gun through its male 1/4-inch quick-connect plug.
Check before ordering
Match the outlet.
Then connect.
Look at the outlet on your pressure-washer spray gun. This cannon has a male 1/4-inch quick-connect plug and needs a matching female coupler with compatible equipment ratings.
Not a direct hose attachment
This is not an ordinary garden-hose foam gun. A garden hose by itself does not provide the pressure-washer interface this product requires.
A connector that physically clicks together does not prove pressure or flow compatibility. No maximum PSI, minimum PSI or GPM range is supplied for this Alpha 4.0 listing; follow the operating limits of your pressure washer and every connected component.
What arrives
One complete cannon.
Clearly accounted for.
The listing includes the assembled foam-cannon head, 1000 mL PET reservoir, PVC pickup tube and stainless weighted ball. The pressure washer, spray gun, hose and shampoo shown in use are separate.
| Component | Supplier-listed detail |
|---|---|
| Connection | Male 1/4-inch stainless quick-connect plug |
| Orifice | 1.2 mm, supplied as standard |
| Reservoir | Smoky transparent PET bottle, marked as 1000 mL on the supplier packaging |
| Flow path | PVC pickup tube with stainless weighted ball |
| Head | Blue and white engineering-plastic controls with metal valve body |
Tune the application
Set the draw.
Shape the fan.
Use the top control to change solution draw, then rotate the front sleeve to move from a narrow stream toward the supplier-listed approximately 60° fan. Start conservatively and adjust for your shampoo and equipment.
Foam thickness and coverage vary with the shampoo, dilution, water, pressure-washer output and adjustment. A 1.2 mm orifice does not guarantee a particular foam density, and thicker-looking foam does not by itself prove better cleaning.
Prepare the system
Fill with care.
Connect without pressure.
- Check the fitting: confirm the 1/4-inch connection and all equipment limits.
- Mix as directed: follow the foam-cannon shampoo label. Do not assume one universal soap-to-water ratio.
- Seat the bottle: align the quick-lock head, lock it fully and check the assembly before pressurizing.
- Connect safely: turn the washer off and release stored pressure before installing or removing the cannon.
- Work on cool surfaces: keep foam from drying, rinse as directed and continue with a contact wash when the cleaning method calls for it.
After the wash
Flush the path.
Store it empty.
Clean water after every use helps remove remaining shampoo from the bottle, pickup tube and head. Depressurize before disconnecting, drain the assembly and store it away from freezing conditions.
Inspect the plug, seals, bottle head and pickup path before reuse. Stop using the cannon if a component is cracked, loose, leaking or damaged. Replacement seals, adapters, shampoo and tools are not listed as included.
Before you choose
Good questions.
Clear answers.
Will this fit my pressure washer?
It needs a spray gun with a matching female 1/4-inch quick-connect outlet, plus compatible pressure and flow requirements. Brand name alone does not confirm fit. Compare the actual gun outlet and equipment limits before ordering.
Does it connect directly to a garden hose?
No. This Alpha 4.0 model is a pressure-washer accessory. An ordinary garden hose by itself does not provide the required spray-gun quick-connect interface.
How much shampoo should I use?
Follow the shampoo maker’s foam-cannon dilution instructions. Start with the recommended mixture and adjust gradually. The 1 L bottle capacity and 1.2 mm orifice do not establish one ratio for every shampoo or washer.
What does the weighted ball do?
It is part of the flexible pickup system inside the bottle. Keep the tube and ball clean and correctly assembled. It does not guarantee complete pickup at every angle or emptying every last drop.
Is the listed 80 g the complete product weight?
The supplier page declares 80 g, but that figure has not been independently verified and appears unusually low for the pictured complete assembly. NUVEREN does not present it as a measured customer-facing net weight.
What is included?
One foam cannon with the blue-and-white Alpha 4.0 head, smoky 1000 mL bottle, 1/4-inch quick-connect plug, pickup tube and weighted ball. Pressure washer, spray gun, hose, shampoo, adapters and other accessories are not included.
Where can I find shipping and returns?
See our shipping policy and return policy. Confirm the connection before using or filling the cannon.
Preserve the New.
Explore more pressure-wash and detailing tools, or contact NUVEREN for help checking the connector.
Images are illustrative product renders based on reviewed supplier references. Product appearance can vary slightly. No pressure washer, spray gun, hose, shampoo or vehicle is included.
Regular price
$39.99 USD
Sale price
$39.99 USD
Regular price
Unit price
Save
Alpha 4.0 Quick-Lock 1 L Foam Cannon — 1/4-in Connect