Deep Diving the new AR591+ Pressure Washer
The AR591+ is the most refined, enthusiast-focused pressure washer we’ve ever tested.
After 8+ months of testing & optimising with the AR engineering team in Italy, we’ve landed on something that truly pushes the boundaries of this enthusiast and entry level pro category. It's compact, powerful, and packed with features you simply don’t get at this price - including a genuine brass pump, stainless steel pistons, true Total System Stop, and a real-world tested flow of 8.2L per minute (max 9L per minute).
Built with detailing in mind from the ground up, the AR591+ gives serious users a smarter alternative to throwaway aluminium and spec-inflated machines. It’s tuned, tested, and ready to raise the bar.

Deep Diving the AR591+
AR591+ is the most refined enthusiast pressure washer we’ve ever tested — and it’s not even close.
Tested at 8.2L/min on a standard 10amp plug, this unit delivers serious performance backed by a genuine brass pump, stainless steel pistons, and a brushless induction motor. It’s fully serviceable, totally rebuildable, and built with long-term reliability in mind.
It also features True Total System Stop — a pressure release system almost never seen at this price point — reducing heat, internal stress, and wear.
What really sets the AR591+ apart is the custom tuning work we’ve done with the Annovi Reverberi engineering team in Italy. Over eight months of collaboration has resulted in a machine optimised for detailing — balancing flow, pressure and usability under real-world conditions.
If you're chasing pro-grade performance without stepping into full commercial gear, the 591+ is easily one of the best options in our pressure washer range.
AR591+ and Related Products
Below you can browse the AR591+, the essential kits and popular related washing products and similar pressure washers
Professional Build Quality
The AR591+ doesn’t just perform well — it’s built properly.
Where most machines in this price range rely on lightweight, short-lived aluminium pumps, the AR591+ runs a full brass pump head. It’s more durable, more heat resistant, and crucially — it’s rebuildable. If something ever goes wrong, you can service it instead of binning the entire machine.
Inside that pump? Quality stainless steel pistons — not composite or coated metal like you find in most entry-level and even some mid-tier units. These pistons cycle thousands of times per minute under pressure, so material choice matters. Stainless holds up, runs cooler, and resists wear over the long term.
Pair that with a brushless induction motor and you’ve got a setup that’s smoother, quieter, and significantly more reliable under load.
We’ve tested this at 8.2L/min of water flow and 1200 PSI using a standard 10amp plug — with the potential to hit up to 9L/min and 1950 PSI depending on your setup. That combination gives you faster rinsing, thicker snow foam, and a more efficient wash overall.


Custom Tuned for Detailing
The AR591+ isn’t just another pressure washer — it’s been custom tuned from the inside out.
Over eight months of collaboration with the Annovi Reverberi engineering team in Italy, we refined the internal flow paths and balanced the pressure curve specifically for detailing. The result? Better rinsing, smoother operation, and stronger foam cannon performance thanks to the increased water flow.
It also features True Total System Stop — a premium feature that fully unloads internal pressure when you release the trigger. That means less wear, no pressure spikes, and longer life.
Top it off with a pressure gauge, hose reel, adjustable output, and a compact trolley system — and the 591+ gives you pro-level usability right out of the box.
The 591+ Essentials Kit
The AR591+ already comes equipped with premium hardware — but if you're after more control, comfort, and flexibility, our Essentials Upgrade Kit takes it even further.
It includes a short gun, insulated lance, adjustable quick-connect nozzles, and all the fittings you need to streamline your setup. You’ll get better reach, easier handling, and faster connect/disconnect without wrestling bulky threaded parts or long stock wands.
It’s a practical upgrade that makes a noticeable difference — especially if you’re washing regularly or want more freedom in how you move around the vehicle.
Check out the AR591+ Essentials Kit to see what’s included and how it enhances your wash process.

