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GMAX II 3900

  • Lo-Boy P/N 17E826
  • Producing 65% more performance than the GMAX 3400, the GMAX II 3900 has the power and flow to handle up to two guns and is ideal for the professional contractor who sprays a wide variety of coatings.


Everyday Reliability. Graco GMAX Standard Series gas-powered airless paint sprayers deliver unmatched durability and performance, with the capability to handle the widest range of tip sizes, longer hose lengths and heavier coatings with ease.

  • Endurance Chromex Piston Pump
    • The most reliable pump
    • Lasts 2X Longer than the next leading brand
    • Repack the pump in minutes with the new QuikPak Cartridge System
    • QuikChange pump design allows you to swap the pump easily on the job
    • Faster cleaning with the QuikAccess intake foot valve
  • ProConnect 2 Pump Replacement System
    • Pump swaps in 1-minute or less – no tools, pins or parts to lose
    • Eliminate costly downtime
  • SmartControl 3.0
    • Consistent spray fan & pressure control
    • Handles the widest range of coatings with the most consistent fan pattern
    • Lowest dead band at any pressure
  • Precision Advantage Drive
    • The longest lasting drive
    • Hardened steel gears provide extremely quiet operation
    • Lifetime Warranty
  • Easy Out Pump Filter
    • Easy maintenance & less clogging
    • Exclusive inside-out filtering won't collapse to ensure a quality finish
    • Vertical design for less mess
  • Heavy-Duty Prime Valve
    • Maintenance-free design withstands high-pressure dumping
  • Durable Cart Design
    • Rugged and easy-to-manoeuvre
    • Thick chrome over steel and pneumatic wheels for tough job site conditions
    • Convenient retractable bucket hook allows for easy movement on the job
  • Honda® Engine
    • Reliable, powerful & easy-to-start
    • Oil Alert shuts down engine to prevent damage if oil level drops too low
    • Contractor Preferred
  • Contractor PC Spray Gun
    • All-day comfort & control
    • Lightest weight gun in its class
    • Up to 50% lighter trigger pull force
    • E-Z Fit adjustable trigger length
    • Complete gun rebuild in seconds with ProConnect cartridge
  • Jobsite Ready
    • Includes RAC X SwitchTip and 50 ft of BlueMax II hose

Specifications -

  • 3,300 psi
  • 0.036 Maximum Tip Size
  • 4.7 litres/min
  • 120 Honda Engine cc
  • 50kg
  • Smart Control
  • 0.036 Gun Support – 1 Gun
  • 3.023 Gun Support – 2 Gun
  • Contractor PC Gun
  • 6.4mm x 15m BlueMax II Airless Hose
  • 6.4mm x 0.9m Whip Hose
  • RAC X 517 Tip
  • Easy Out Filter
  • Endurance Pump
  • Chromex Rod
  • Hard Chrome Sleeve
  • Onboard Tools
  • Lo-Boy Frame
  • Tiltback


Petrol Sprayers