Our take
ALH3225 is a professional gas model with a 35-foot hose, pneumatic tires and a manufacturer-listed AAA triplex pump. Confirm whether an offer is ALH3225-S part 60774 or in-store ALH3225 part 60686 before buying.
A contractor-oriented model for a buyer who can confirm which ALH3225 suffix and part number is being offered and wants a 35-foot hose..
Look elsewhere if you need a light electric washer, a 50-foot hose, published machine dimensions, or a model-to-ASIN match without a suffix check.
Pros & cons
What could work for you, and what to consider before buying.
What works in its favor
- SIMPSON lists 3200 PSI and 2.5 GPM for the ALH3225 model family.
- The manufacturer documents a Kohler SH265 engine, AAA industrial triplex pump and 35-foot MorFlex hose.
- Ten-inch pneumatic tires and five quick-connect tips are listed, and the page identifies both part-number variants.
What to weigh up
- The old ASIN is not mapped to the online ALH3225-S or in-store ALH3225 configuration, and the row title's HS265 conflicts with the manufacturer's SH265 spelling.
- Overall weight and machine dimensions are not stated on the checked product page.
- Its 2.5-GPM listing is below 3.5-GPM flow thresholds used for high-flow professional comparisons.
Specifications and exact model details
The key details
| Model covered | ALH3225 (online ALH3225-S; part numbers 60686 / 60774) |
|---|---|
| Power source and motor | Gasoline; manufacturer page says Kohler SH265 with low-oil shutdown; historical row title says HS265. |
| Pressure and listed flow | 3200 PSI and 2.5 GPM listed; the page does not mark the flow rated or maximum. |
| Pump and hose | AAA industrial triplex pump with PowerBoost; 5/16-in x 35-ft MorFlex hose. |
| Nozzles and water setup | Five quick-connect tips: 0°, 15°, 25°, 40° and soap. |
| Mobility and storage | 10-in pneumatic tires; machine weight and overall dimensions are not stated. |
| Documented work uses | SIMPSON positions the Aluminum Series for contractors and professional cleaning work. |
| Variant and market notes | Online ALH3225-S is part 60774; in-store ALH3225 is part 60686. Historical ASIN mapping and HS265/SH265 title mismatch remain open. |
Performance figures are manufacturer claims. Source checked October 16, 2026. Regional models and included accessories can differ.
Full review: how the features affect your choice
What the features mean for you
Professional output and flow wording
SIMPSON lists ALH3225 at 3200 PSI and 2.5 GPM. The page does not label the flow as rated or maximum, so retain it as a listed value when comparing models. These numbers are the manufacturer's specifications and do not promise an outcome on a particular deck, surface or coating. The product is positioned for contractor work, but that does not make it a high-flow model in the sense of a 3.5-GPM threshold. Consider the flow, nozzle and water supply together when deciding whether it suits the work, and do not use PSI alone as a measure of cleaning rate.
Engine, pump and service setup
The product page identifies a Kohler SH265 gas engine with low-oil shutdown and an AAA industrial triplex pump with PowerBoost technology. That is a distinct maintenance and operating setup from a corded electric washer: plan for fuel, outdoor use and the service needs described in the engine and pump documentation. SIMPSON's series description targets contractors handling deck cleaning, wood restoration, paint preparation and graffiti removal. Those examples communicate the manufacturer's intended work profile, not a guarantee of cleaning performance. Check the exact engine label and local requirements when comparing an online suffix with an in-store part number.
Hose reach and spray tips
SIMPSON lists a 5/16-inch by 35-foot MorFlex high-pressure hose and five quick-connect tips: 0, 15, 25, 40 degrees and soap. Thirty-five feet gives more documented hose length than the 25-foot residential machines in this group, while remaining shorter than a 50-foot long-reach setup. The nozzle set gives several spray patterns, but the manual and surface guidance should determine which is appropriate; a narrow stream can damage vulnerable material. The manufacturer page does not give a detailed current box inventory for every seller, so confirm the hose and tips are included with the exact offer.
Pneumatic wheels and storage
The page lists 10-inch premium pneumatic tires and notes that the aluminum frame is lighter than most steel frame designs. It does not give the machine's total weight or assembled dimensions, so the comparative frame description is not a substitute for a scale or measurement. A buyer using rough ground may value the documented tire type, but storage through a doorway, vehicle loading and lifting still require exact dimensions and weight. Measure the available space and ask for the specific part's shipping and net weights before planning transport. The two suffix variants should be checked rather than treated as the same Amazon offer.
Part-number and engine-code variants
SIMPSON identifies online ALH3225-S as part 60774 and in-store ALH3225 as part 60686. The historical row gives the family name without a suffix and says Kohler HS265, while SIMPSON's official page spells the engine SH265. No source maps the old ASIN to either manufacturer part or resolves that code difference. The product page presents shared model-family specifications, so this review keeps both discrepancies visible and links to a model search. Ask the seller for the part number and engine label before purchase; a family name alone does not prove the exact package.
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Before you buy
What is the difference between ALH3225 and ALH3225-S?
SIMPSON identifies online ALH3225-S as part 60774 and in-store ALH3225 as part 60686. The old ASIN is not mapped to either.
Why does the title say HS265 while SIMPSON says SH265?
The historical row title says HS265, and the manufacturer page says SH265. The exact row-to-part mapping has not been established, so confirm the engine label.
Does the page give its full weight and dimensions?
No. The checked page lists several frame and component details but not overall machine weight or dimensions.
Where can I check the current price?
Use the Amazon link for current offers. Check the exact model, seller, product condition, delivery, and return terms. This page does not display a live price or confirm stock.
Sources and review basis
Sources & review basis
We use the linked product documentation for the features above. Our suitability notes and buying advice are editorial judgments based on those features, not measured performance results.
- SIMPSON Aluminum ALH3225 product page ↗ — checked October 16, 2026.
- SIMPSON Aluminum ALH3225 product page ↗ — checked October 16, 2026.
Is it the right fit?
Check the exact model and today’s offers on Amazon.