604 Air Booster Foam Effortless Sprayer
Introducing the 604 Air Booster Foam Sprayer – the ultimate portable solution for professional foam applications.
Building on the success of the FoamX Pro, the 604 takes foam spraying to the next level by replacing manual pumping with a battery-powered compressor head. This innovation delivers a constant 40 PSI of pressure, giving professionals a reliable, portable option that eliminates the fatigue and inconsistency of hand-pumping.
Just like our 601 Air Booster, the 604 features automatic start/stop pressurization. The motor idles once the tank reaches full pressure and restarts the moment pressure drops, ensuring uninterrupted, consistent performance with every trigger pull. At the heart of the 604 is a brushless motor, engineered for superior energy efficiency, quieter operation, enhanced safety, and long-lasting durability.
Designed with Viton® seals and o-rings, the 604 stands up to a wide range of foaming agents and cleaning solutions. Paired with its durable wand, reinforced hose, and professional-grade build, this sprayer is ideal for automotive detailing, HVAC maintenance, surface sanitation, and general cleaning. It produces thick, clinging foam with the efficiency and reliability that pros demand.
With the 604 Air Booster Foam Sprayer, Sprayers Plus delivers the first truly effortless, battery-powered foam sprayer—combining portability, durability, and performance into one game-changing solution for the professional cleaning industry.
Applications
Primary
- • Cleaning
- • Sanitization
- • Car Wash & Detailing
- • HVAC Cleaning
Secondary
–
This model is not intended for use with high concentration vinegar/ Phosphoric acid/ Xylene
If you have any questions about chemical compatibility, please contact us at info@sprayers‑plus.com.
KEY FEATURES
- 2 Gallon
- Compression
- Regular Pressure
- No Jet Agitation
- Battery Powered
- FEATURES
- SPECIFICATIONS
- PARTS
- VIDEOS
- USER MANUALS
FEATURES
Brushless Motor Advantage
Engineered for superior durability and enhanced safety. Delivering a consistent 40 PSI, it’s built to power through an entire day’s work with reliability and efficiency.
Auto Start/Stop
Designed to automatically activate when pressure dips below the preset level, the Air Booster ensures a steady flow. Once pressure is stabilized, the motor halts pressurization until it falls below the preset PSI, guaranteeing seamless and efficient spraying every time.
Battery Duration

The 604 Air Booster delivers a pumpless foam spraying solution powered by a detachable battery. One charge covers up to 2,000 sq. ft. or 13 standard vehicles, and for commercial users, swapping in multiple batteries keeps the sprayer running all day without interruption.
Chemical Foam Versatility
Viton & Seals
At Sprayers Plus, we use only the highest quality genuine and industry-trusted Viton® seals. Viton® seals are both stronger, more durable, and last longer than conventional rubber seals, meaning you can spray longer and leave the worry behind!
Quality Housing
Quality that you can feel. We use up to 50% thicker cylinders than other leading products in the market. We promise a solid foundation free from distortion, alongside a high duration, long lifetime housing. All our sprayers have a high tolerance for accidental drops, and our special UV Inhibitor on the tank will allow for usage under the sun for 3- 5 years without any cracking. Our unique Sprayers Plus tank design also simplifies the act of putting on and taking off the sprayer!
Hand wand holder
A wand holder hook that retracts for easy retrieval and storage of your Sprayers-Plus wand.
Removable Hose Connection
Don’t let a hose get in your way. With the new screw-in hose connecting method, installing and removing a hose has never been easier. We no longer need to fight a stiff hose from storage or settle it in a car trunk.
Drip-Free tray
We design a catchment area for your spray wand to prevent any unwanted dripping while transporting your working area from A to B.
Pressure Relief Valve
Safety First. The pressure relief valve will not only depressurize the sprayer efficiently but also prevent safety hazards from overpressure
Battery Sprayer Converts Into Manual Pumping
Flexibility is everything! The 604 Air Booster gives you the freedom to switch between battery power and manual operation, keeping you prepared even when the battery runs out.
*Manual pump module sold separately
SPECIFICATIONS
System
| Pump Type | Battery Compression Pump |
|---|---|
| Voltage | 16V |
| Battery Type | Lithium-ion |
| Duration | Up to 6 gallons of foam spraying, single charge |
| Battery Cycle | 500 |
| Charging Time | Up to 2.5 Hours |
| Battery Weight | 0.8 LB |
| Agitation | No |
| Working Pressure | 40 PSI |
| Max PSI | 40 PSI |
Capacity
| Gallons | 2 |
|---|---|
| Litres | 7.6 |
Hose
| Hose Length | 51" |
|---|---|
| Hose Material | Reinforced PVC (Black) |
| Hose Base Spring | No |
Wand
| Wand Length | 20" |
|---|---|
| Wand Material | 20" Chemical Resistant PVC |
| Seals & O-Rings | Viton® |
Nozzle
| Plastic Adjustable Nozzle | Foam Nozzle (nonadjustable) |
|---|---|
| Brass Adustable Nozzle | No |
| 90 Deg. Plastic Fan Nozzle | No |
| 110 Deg. Plastic Fan Nozzle | No |
| 120 Deg. Plastic Fan Nozzle | No |
Spray Gun
| Lock pin | Yes |
|---|---|
| Brass Spindle | Yes |
| Comfort Grip | Yes |
| Comfort Grip Internal Filter | Yes |
Comfort and Convenience
| Strap | Comfort Adjustable Strap |
|---|---|
| Frame Material | No |
| Handle & Lever Material | No |
| Mouth Opening | 5.24" QuickFill |
| Fold Back Handle | No |
| Polyethylene with UV inhibitor | Yes |
| High Pressure | No |
Warranty
| Warranty | 1 Year |
|---|
Package Dimensions
| Width | 7.87 |
|---|---|
| Depth | 7.87 |
| Height | 24.02 |
PARTS
BRASS SPINDLE SET
$12.99
Buy Online or In-Store
PVC WAND – 20″ (ACID)
$18.99
Buy Online or In-Store
SPRAY GUN FILTER
$2.99
Buy Online or In-Store
PRESSURE RELIEF VALVE
$19.99
Buy Online or In-Store
O-RING SET FOR PRESSURE RELIEF VALVE
$4.99
Buy Online or In-Store
O-RING, & WASHER SET FOR SPINDLE
$8.99
Buy Online or In-Store
SILICONE GREASE
$7.99
Buy Online or In-Store
SHOULDER PADS—–LONGER
$9.99
Buy Online or In-Store
SPRAY GUN A PARTS
$21.99
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16V Battery (Air Booster)
$45.99
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16V Charger (Air Booster)
$42.99
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CHECK VALVE (603 Air Booster)
$4.99
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LARGE O-RING FOR PUMP TUBE
$3.99
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WAND HOLDER & DRIP TRAY SET (FX275)
$8.99
Buy Online or In-Store
SUCTION PIPE ASSEMBLE (IN TANK)
$7.99
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HOSE SET
$29.99
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COMPLETE SPRAY GUN SET
$42.99
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NOZZLE ASSEMBLY (FX275)
$8.99
Buy Online or In-Store
REPLACEMENT FIBERS (10 PCS)
$2.99
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WASHER SET FOR SPRAY GUN VITON
$2.50
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GRIP SET
$6.99
Buy Online or In-Store























