The Simpson Aluminum ALH3228-S is a gas-powered pressure washer offering a maximum water pressure of 3400 PSI and flow of 2.5 GPM. (Read full specs)
Zoom on the Simpson ALH3228-S
In a nutshell, the Simpson ALH3228-S is a heavy duty, commercial pressure washer, which not only offers an all-around versatile cleaning experience, but that also allows:
- spot cleaning of hard, paintless surfaces and reaching far-away areas
- thorough cleaning of hard, paint-free surfaces
- cleaning of painted and frail surfaces
- applying detergent and cleaning solutions
The Simpson ALH3228-S's triplex pump, powered by a 196 cc (5.5 hp) engine, can provide a pressure of up to 3400 PSI (approximately 57 times more than a standard garden hose) and a flow of up to 2.5 GPM (CETA-certified values). The Simpson ALH3228-S thus has a cleaning power of 8500 Cleaning Units.
This gas-powered pressure washer’s Honda GX200 engine is started by a traditional pull-start mechanism.
Gasoline is stored in a steel fuel tank with a maximum capacity of 0.8 gallon.
Design & Handling
The wheelbarrow design of the Simpson ALH3228-S grants mobility and stability to the unit. The aluminum frame allows the device to remain highly durable, as it will not rust. The reversible handle offers further versatility, as its different positions make the unit less bulky when stored.
The device can be maneuvered with ease by most, since it only weighs 74 lbs. Since the 196 cc Honda GX200 engine and triplex pump account for a large part of its weight, Simpson's utilization of an aluminum frame keeps the unit at a reasonable weight. The ALH3228-S can still be easily manipulated and maneuvered, thanks to its two 10" pneumatic wheels.
The Simpson ALH3228-S's package includes a spray gun, a wand, a pressure hose, 5 nozzles and a detergent injection feature, with a more detailed description below.
- Soap injection: Even though the device doesn't have a soap tank, detergent is supplied by a siphon hose. The detergent is diluted with a 7:1 ratio by the Simpson ALH3228-S's automatic soap dilution mechanism. If a soap nozzle is attached, the device will proceed to add the detergent to the water automatically.
- Pressure hose: The included 25 ft ⌀5/16" high-pressure hose can be neatly stored on the unit when idle thanks to a set of convenient hooks.
- Spray gun and wand: A side hook allows for an easy storage of the included classic ergonomic spray gun and its steel wand.
- Nozzles: The 5 included nozzles, and the respective surfaces they’re appropriate for, are listed in the table below.
|Concrete, brick, masonry||Use with caution||Suitable||Suitable||Suitable||Suitable|
|Siding, gutters, house||Not recommended||Use with caution||Use with caution||Suitable||Suitable|
|Fencing, deck, patio||Not recommended||Use with caution||Use with caution||Suitable||Suitable|
|Lawn equipment, boat, RV||Not recommended||Use with caution||Use with caution||Use with caution||Suitable|
Note: The shape of the nozzles above is for illustration purposes only and may differ.
Red cross: Not recommended. Green check: Suitable. Orange check: Use with caution.
- Onboard storage: The Simpson ALH3228-S 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), a low oil protection and a thermal relief valve (which helps to prevent internal pump damage).
- Accessories: The Simpson ALH3228-S comes with an owner's manual (opens in a new tab) and some basic documentation to get you quickly started. On top of that, you also get oil, wand, pressure hose, soap hose and spray gun.
- Emissions: The Simpson ALH3228-S is EPA-approved and CARB-compliant. This means that this pressure washer can be bought and sold in each of the 50 states, including California.
The Simpson ALH3228-S's performance versus other pressure washers
The following charts are provided to give you an idea of how the key specs of the Simpson ALH3228-S compare to similarly priced pressure washers.
- The Simpson ALH3228-S, which can reach a PSI of 3400, achieves an average pressure output, compared to other gas-powered units that cost between $625 and $700. If the highest possible power of the water stream is your priority, one of the champions in this price range is the Simpson ALH3425-S with 3600 PSI.
- This washer, with a GPM of 2.5 (gallons per minute) has a somewhat lower water flow value compared to devices in its price range. If being able to rinse away debris as efficiently as possible is your priority, one of the products with the highest GPM in this price range is the Stihl RB 400, with 2.7 GPM.
- With the ALH3228-S's 8500 Cleaning Units (PSI x GPM), its cleaning efficiency range may be considered average, compared to gas-powered units of similar price. If you consider the highest overall cleaning power as a really important factor, the Simpson ALH3425-S and its 9000 Cleaning Units has one of the highest cleaning efficiency of all the similarly priced units.
As you can see from this interactive chart, when compared to other gas-powered washers between 8000 and 8500 Cleaning Units, the Simpson ALH3228-S is on the expensive side of the price range.
While certainly not the cheapest of its cleaning power range, purchasing it could most likely also mean enjoying the reliability of a high-end product.
Features and Specifications
|Water||Cold (100°F max.)|
|Engine||196 cc 5.5 HP Honda GX200 OHV 4-stroke|
|Pump||CAT 4DNX25GSI Triplex|
|Other model numbers||60735|
|Soap injection||Via siphon hose|
|Nozzles||0°, 15°, 25°, 40°, Soap|
|Quick connect nozzles||Yes|
|Hose||25 ft, ⌀5/16|
(L x W x H)
|Approx. 30 x 21 x 24 in|
|Wheels||2 wheels, ⌀10", pneumatic|
|Included accessories||Oil, steel wand, spray gun, high pressure hose, soap hose, 5 nozzles|
|Security||Low oil, trigger lock and thermal relief valve|
Unlike many websites, we did our best to research each of the specs above. That being said, we are not immune to making the occasional mistake or omission. Should you notice any missing or incorrect values, don't hesitate to suggest improvements so we can address the issue.
Simpson has over 50 years of experience making quality products for the outdoor power equipment industry. Part of the FNA Group based in Pleasant Prairie, Wisconsin since 2006, they are a vertically-integrated company, meaning most of the parts and accessories are manufactured and assembled by them. Their manufacturing facilities are international. With the company motto "Driven by Performance", Simpson continues to offer a great variety of pressure-washing systems for the homeowner or the professional contractor.
The Simpson ALH3228-S is covered under a warranty for up to 10 years. This warranty may be limited and may not cover all parts of the unit.
For more information about the warranty of Simpson pressure washers, please contact the Simpson Customer Support: 1-877-362-4271.