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Sun Joe SPX3550 vs SPX3500 - The Differences

Further down the page, you'll find some explanations regarding the key similarities and differences between the Sun Joe SPX3500 and the Sun Joe SPX3550.

But before checking out explanations regarding their power, design, and features here's a table that summarizes the main pros of each of these 2 pressure washers:

Sun Joe SPX3500Sun Joe SPX3550
Sun Joe SPX3500Sun Joe SPX3550

Spec-wise, this product does not have any notable advantage over the Sun Joe SPX3550

  • Higher GPM
  • Lighter
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As the SPX3500 and the SPX3550 are both Sun Joe pressure washers, they benefit from the same level of quality and attention to detail.

Power Comparison

  • Fuel: Both units are electric pressure washers.
  • Engine & Pump: The Sun Joe SPX3500 and the Sun Joe SPX3550 both use an axial-type pump to put water under pressure. The Sun Joe SPX3500's pump is powered by a 13-amp motor, while the Sun Joe SPX3550 uses 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.

  • Pressure: With very similar maximum reachable pressures (2300 PSI for the Sun Joe SPX3500 and 2350 PSI for the Sun Joe SPX3550), both devices should do an equally good job at lifting and blasting off dirt.
  • Water Flow: When operating at low pressure, the SPX3550 can generate a much higher maximum volume of water than the SPX3500. It can deliver up to 1.8 GPM (gallons per minute), whereas the SPX3500 offers a maximum water flow of 1.48 GPM. The former should thus allow you to rinse away dirt and debris with significantly better efficiency and speed.
  • Cleaning Power: As the difference in Cleaning Units between the Sun Joe SPX3500 and the SPX3550 (2180 and 2200 C.U., respectively) can be considered negligible, we can say that both these devices share the same overall cleaning efficiency.

Design Comparison

  • Design: With their compact design, both units are constructed with a strong focus on portability in mind.
  • Weight: Weighing 24 lbs, the SPX3550 is far lighter than the 36.8 lbs of the SPX3500.
  • Maneuverability: Both products benefit from a set of wheels, which greatly contributes to their maneuverability. Both offer a handle, which improves your grip when you wish to move them.

Feature Comparison

  • Soap Addition: Both washers allow for the addition of chemical detergent solutions to the water. Whether you choose the SPX3500 or the SPX3550, you'll be able to store your cleaning chemicals in the unit's onboard soap tank. Their soap capacity is equal, as the tanks of both units can hold 0.32 gal of detergent.
  • Trigger Gun & Wand: Each of these 2 units comes with a fairly standard ergonomic trigger gun and a classic wand.
  • Nozzles: Out of the box, the SPX3550 and the SPX3500 both come with a 5-nozzle package. The set of included nozzles is the same in either case: 0°, 15°, 25°, 40°, and a soap nozzle.
  • Reach: Both products include a 20 ft high-pressure hose. Therefore, neither of them will, out of the box, allow for a higher freedom of movement around the unit. As both units feature a 35 ft power cord, their maximum allowable placement from an electrical outlet is the same.
  • Storage: The SPX3500 and SPX3550 both offer onboard storage that allows you to neatly keep the accessories you need at hand. Both washers feature a set of hooks to help you neatly store their high pressure hoses when not in use.
  • Accessories: In addition to the usual set of included accessories, the Sun Joe SPX3550 also comes with a garden hose adapter.

TL;DR

Sun Joe SPX3500Sun Joe SPX3550
Sun Joe SPX3500Sun Joe SPX3550

Spec-wise, this product does not have any notable advantage over the Sun Joe SPX3550

  • Higher GPM
  • Lighter
Show all offers
Show all offers
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