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.Work Smarter, Finish More Jobs. Graco GMAX ProContractor Series gas-powered airless paint sprayers are designed to deliver speed & performance so you can get to the next jobsite faster and increase your profits.

• Endurance Vortex MaxLife Piston Pump
  • Superior pump life
  • Breakthrough vortex rotating rod technology
  • Repack the pump in minutes with the new QuikPak Cartridge System
  • Lasts 6X longer between repacks with innovative MaxLife technology
  • Oversized passages for high velocity flow to rotate piston for even wear
  • Repack pump in minutes with new QuikPak cartridge repair system
• ProConnect 2 Pump Replacement System
  • Pump swaps in 1-minute or less – no tools, pins or parts to lose
  • Eliminate costly downtime
• QuikReel Hose Management System
  • Easy hose management
  • Deploy and rewind up to 300 feet (90 meters) of hose in seconds
  • No twisting, kinking, and coiling
  • Use only the hose you need — the rest stays on the reel
• Crushproof Inlet Strainer
  • Durable filtration
  • Stands up to harsh impacts to maintain even flow through filter
• 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
• WatchDog Pump Protection System
  • Automatically prevents pump damage if material supply is too low
• Precision Advantage Drive
  • The longest lasting drive
  • Improved jobsite conditions with extremely quiet operation
  • Lifetime Warranty
• 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
  • More info: graco.com/ContractorPC
• Additional Features:
  • Easy Out Pump Filter
  • Heavy-Duty Prime Valve
  • LED Display
  • Rugged, Durable Cart Design