Sun Joe SPX3550 vs SPX3500 - The Differences
Power Comparison
- Both units are corded electric washers, offering sustained power for uninterrupted cleaning, making them reliable choices for tackling larger tasks without interruption.
- Both the Sun Joe SPX3500 and the Sun Joe SPX3550 utilize axial-type pumps, which are recognized for their lightweight design and straightforward operation. The Sun Joe SPX3500's pump is powered by a 13-amp motor, while the Sun Joe SPX3550 utilizes a 14.9-amp motor. Both motors are of the induction type.
The following charts are provided to show you at a glance how the main specs of the Sun Joe SPX3500 compare to the Sun Joe SPX3550.
- At 2350 PSI, the Sun Joe SPX3550 delivers a much higher force to tackle dirt and grime, outperforming the 2000 PSI of the Sun Joe SPX3500.
- At low pressure, the SPX3550 can produce a much higher volume of water than that of the SPX3500. With a capacity of up to 1.8 GPM (gallons per minute) compared to the SPX3500's maximum flow of 1.1 GPM, it should enable you to rinse away dirt and debris with significantly greater effectiveness.
- Both devices deliver identical cleaning power measured at 2200 Cleaning Units, resulting in equivalent overall cleaning efficiency.
Design Comparison
- Built with portability as a priority, both units sport a compact design, offering users flexibility for cleaning tasks wherever they go.
- With a weight of 24 lbs, the SPX3550 stands out as significantly lighter compared to the 36.8 lbs of the SPX3500, offering users enhanced maneuverability and handling.
- Each product is equipped with wheels, significantly enhancing their maneuverability. Both products feature a handle, designed to enhance your grip for improved comfort and control when maneuvering or transporting them.
Feature Comparison
- Both washers allow users to incorporate chemical detergent solutions into the water, boosting their cleaning efficiency. With both the SPX3500 and the SPX3550, you have the advantage of onboard soap tank, offering a practical solution for storing your cleaning chemicals right within the unit. Their soap capacity is equal, as the tanks of both units can hold 0.32 gal of detergent.
- Both units feature a fairly standard ergonomic trigger gun and a classic wand in the package.
- Out of the box, the SPX3550 and the SPX3500 both come with a 5-nozzle package. Both products offer the exact same selection of nozzles: 0°, 15°, 25°, 40°, and a soap nozzle.
- Equipped with a 20 ft high-pressure hose each, both units provide identical freedom of movement around the unit upon arrival. With power cords measuring 35 ft, both units allow for an equivalent distance from an electrical outlet.
- Both the SPX3500 and SPX3550 feature convenient onboard storage, ensuring that your accessories are always within reach. With a set of hooks, both washers offer an organized way to store their high-pressure hoses.
- Alongside the standard accessories, the Sun Joe SPX3550 model also offers a garden hose adapter.
TL;DR
| Sun Joe SPX3500 | Sun Joe SPX3550 |
|---|---|
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| Spec-wise, this product does not have any notable advantage over the Sun Joe SPX3550. |
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| Buy on Amazon (opens in a new tab) | Buy on Amazon (opens in a new tab) |



