Pressure-Pro PP4440K - 4400 PSI 4 GPM 429cc Gas Pressure Washer
The Pressure-Pro Dirt Laser PP4440K is a gas-powered pressure washer offering a maximum water pressure of 4400 PSI and flow of 4 GPM. (Read full specs)
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Description
Zoom on the Pressure-Pro PP4440K
In summary, the Pressure-Pro PP4440K is a heavy duty, commercial pressure washer, that offers an all-around versatile cleaning experience, and also:
- comprehensive cleaning of hard surfaces, vehicle washing, and readying surfaces for painting
- mild cleaning for delicate surfaces, and low-pressure cleaning for broader areas
- applying detergent and cleaning solutions, and rinsing surfaces
The following sections will present you in detail its power characteristics and design, its main features and all the additional features it has to offer.
Power
The Pressure-Pro PP4440K's triplex pump, powered by a powerful 429cc engine, can provide a pressure of up to 4400 PSI (approximately 73 times more than a standard garden hose) and a flow of up to 4 GPM (values claimed by the manufacturer). Thus, the Pressure-Pro PP4440K achieves a cleaning power of 17600 Cleaning Units.
To initiate the KOHLER CH440K engine of this gas-powered pressure washer, a traditional pull-start mechanism is employed.
The pressure washer's steel tank has a maximum capacity of 1.9 gallon for storing gasoline.
Design & Handling
Thanks to its hand truck design and approximate dimensions of D26.5 x W22.5 x H40.2 in, the Pressure-Pro PP4440K offers great mobility. Built to endure, the steel frame ensures the assembly's longevity by providing stability and safeguarding internal components under all working conditions. The reversible handle offers further versatility, as its different positions make the unit less bulky when stored.
With its weight clocking in at 121 lbs, this unit's heftiness can't be ignored, presenting significant difficulties for users who need to lift and transport it, especially over uneven terrain. Its 429cc KOHLER CH440K engine, the triplex pump and steel frame add up to a large chunk of the device's weight. However, the incorporation of two 10" never-flat wheels makes navigating the PP4440K less cumbersome, even on uneven terrain.
Main Features
Along with the Pressure-Pro PP4440K itself, the package also includes a spray gun, a wand, a pressure hose, 4 nozzles and a detergent injection feature, which are discussed in further detail below.
- Soap injection: Though lacking a dedicated soap tank, the device ensures detergent supply via a siphon hose. Connection of a soap nozzle triggers the pressure washer to automatically incorporate the detergent into the water stream.
- Pressure hose: For easy organization, the included 50 ft ⌀3/8" high-pressure hose can be stored on the unit using a set of convenient hooks when it's not in use, ensuring a clutter-free workspace.
- Spray gun and wand: Both the classic ergonomic spray gun and its wand may be conveniently stored in a side hook.
- Nozzles: Review the table below to learn about the 4 included nozzles and the surfaces they're recommended for.
15° | 25° | 40° | Soap | |
|---|---|---|---|---|
| Concrete, brick, masonry | ||||
| Siding, gutters, house | ||||
| Fencing, deck, patio | ||||
| Lawn equipment, boat, RV |
Important note: The shapes of the depicted nozzles serve for illustration purposes only and may vary. Symbols used include a for 'Not recommended,' a for 'Suitable,' and an for 'Use with caution.'
Other Features
- Onboard storage: With the Pressure-Pro PP4440K's handy storage area, you’ll always have all the necessary nozzles and accessories at hand and thus, you’ll be fully prepared for any job.
- Safety: Safety of operation is enhanced by a trigger lock mechanism (which prevents accidental operation) and a low oil protection.
- Accessories: Included with the Pressure-Pro PP4440K are also the owner's manual (opens in a new tab) and some basic documentation to get you promptly started, along with several accessories, such as oil, pressure hose, spray gun, wand and soap hose.
Product Videos
The Pressure-Pro PP4440K's performance versus other pressure washers
The following charts are provided to give you an idea of how the key specs of the Pressure-Pro PP4440K compare to similarly priced pressure washers.
- With 4400 PSI, the Pressure-Pro PP4440K ranks as one that can reach the highest pressure, amongst the gas-powered products that cost between $1000 and $1200.
- The water flow of this washer, which reaches up to 4 GPM (gallons per minute) is one of the highest values found in the above-mentioned price range.
- With a rather impressive value of 17600 Cleaning Units (PSI X GPM), the PP4440K has one of the highest cleaning efficiencies compared to similarly priced devices.
Price comparison
As you can see from these interactive charts, when compared to other gas-powered washers between 17000 and 18500 Cleaning Units, the Pressure-Pro PP4440K is on the average side of the price range.
Therefore, this pressure washer nicely fits in the expected budget for this kind of cleaning power.
The bottom line
- In the expected price range
- Triplex pump
- Good range of nozzles included
- Onboard storage
- Several security features
- High PSI for the price
- High GPM for the price
- High CU for the price
- No soap tank
Features and Specifications
| Fuel | Gas-Powered |
|---|---|
| Engine | 429cc KOHLER CH440K OHV 4-stroke |
| Pump | Terminator TC3 Triplex |
| Water | Cold (120°F max.) |
| PSI | 4400 |
| GPM | 4 |
| Cleaning Units | 17600 |
| Pressure control | Valve |
| Frame | Steel |
|---|---|
| Handling | Hand Truck |
| Wheels | 2 wheels, ⌀10", never flat |
| Weight | 121 lbs |
| Dimensions | Approx. 26.5 x 22.5 x 40.2 in (D x W x H) |
| Hose storage | Hooks |
| Soap injection | Via siphon hose |
|---|---|
| Nozzles | 15°, 25°, 40°, Soap |
| Quick connect nozzles | Yes |
| Onboard storage | Yes |
| Hose | 50 ft, ⌀3/8 |
| Security | Low oil and trigger lock |
|---|---|
| Emissions | CARB, EPA |
| Included accessories | Oil, wand, spray gun, high pressure hose, soap hose, 4 nozzles |
| Warranty | 2 years |
| UPC | 871924007402 |
We've taken extra care to research and verify each of the specifications above. That said, occasional mistakes or omissions are still possible. If you spot any missing or inaccurate information, feel free to suggest a correction so we can address it.
About Pressure-Pro
Pressure-Pro, Inc was founded in 1994 in Fort Pierce, Florida. They produce a variety of pressure washers, including cold water, hot water, and custom specialty designs. In 2015, Pressure-Pro became part of Nilfisk, a leading manufacturer of professional quality cleaning equipment, representing over 100 years of cleaning experience. Though they use overseas manufacturing for many components, Pressure-Pro washers are designed, assembled, and tested at their Fort Pierce facilities.
Warranty Information
The Pressure-Pro PP4440K is covered under a warranty for up to 2 years. This warranty may be limited and may not cover all parts of the unit.
For more information about the warranty of Pressure-Pro pressure washers, please consult Pressure-Pro's warranty policies (opens in a new tab). Alternatively, you can also contact their Customer Support: 1-772-461-4486.

