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 commercial pressure washer, that offers an all-around versatile cleaning experience, and also:
- broad cleaning of hard surfaces, vehicle washing, and surface preparation for painting
- soft cleaning of delicate surfaces, and gentle cleaning for larger areas with low pressure
- applying detergents or chemicals, and rinsing surfaces afterward
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
With an impressive 429cc engine powering it, the triplex pump of this unit is capable of achieving a pressure of 4400 PSI (approximately 73 times greater than that of a standard garden hose) and a flow rate of up to 4 GPM (values claimed by the manufacturer). Corresponding to these values is a cleaning power of 17600 Cleaning Units.
To start the KOHLER CH440K engine of this gas-powered washer, users employ the familiar pull-start technique.
The pressure washer's steel tank has a maximum capacity of 1.9 gallon for storing gasoline.
Design & Handling
The Pressure-Pro PP4440K is very mobile, due to its hand truck design and approximate dimensions of D26.5 x W22.5 x H40.2 in. 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.
Tipping the scales at 121 lbs, this unit's weight presents a notable challenge for users, especially when it comes to lifting and moving it, particularly over uneven ground. The main contributors to its weight are its 429cc KOHLER CH440K engine, the triplex pump and steel frame. However, the incorporation of two 10" never-flat wheels makes navigating the PP4440K less cumbersome, even on uneven terrain.
Main Features
The Pressure-Pro PP4440K comes with a spray gun, a wand, a pressure hose, 4 nozzles and a detergent injection feature, which are detailed below.
- Soap injection: Detergent is fed in through a siphon hose, since the device lacks a soap tank. Attachment of a soap nozzle prompts the pressure washer to automatically introduce and blend the detergent with the water.
- Pressure hose: The unit comes equipped with an included 50 ft ⌀3/8" high-pressure hose, which can be neatly stored on the unit when idle, thanks to a set of convenient hooks, ensuring easy access and organization.
- Spray gun and wand: A side hook enables you to easily store the included classic ergonomic spray gun and its wand.
- Nozzles: The table below shows you the 4 included nozzles and the surfaces they're the most appropriate 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: The Pressure-Pro PP4440K features a handy storage area, which allows you to neatly store nozzles and accessories and be always prepared by having everything needed at hand.
- Safety: Safety of operation is enhanced by a trigger lock mechanism (which prevents accidental operation) and a low oil protection.
- Accessories: Besides the usual owner's manual (opens in a new tab) and documentation to get you promptly started, the Pressure-Pro PP4440K comes with wand, oil, pressure hose, spray gun 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.
- In the aforementioned price range, the 4 GPM (gallons per minute) of this washer makes it one of the best performing units in terms of the delivered volume of water.
- Featuring 17600 Cleaning Units (PSI X GPM), the PP4440K stands as one of the most efficient options in its respective price bracket.
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
Do you own the Pressure-Pro PP4440K and agree (or disagree) with these strengths and weaknesses?
Let us know and write your own review.
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. End of 2025, Nilfisk sold Pressure-Pro to Pressure Systems Innovations.
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.
