

Graco 17E834 GMAX II 7900 Lo-Boy delivers maximum performance and reliability for professional contractors tackling the largest and toughest coating jobs.
Graco 17E834 GMAX II 7900 Standard Series Lo-Boy is the most powerful gas airless sprayer in Graco’s lineup. Designed for professional contractors, it delivers unmatched flow and pressure for spraying heavy coatings, large surfaces, and multi-gun setups with ease.
| Engine | Honda GX200 (6.5 HP) |
| Max Flow Rate | 2.2 GPM — supports up to 4 guns |
| Max Pressure | 3,300 PSI |
| Max Tip Size (1 Gun) | 0.048″ |
| Max Tip Size (2 Guns) | 0.035″ |
| Max Tip Size (3 Guns) | 0.027″ |
| Max Tip Size (4 Guns) | 0.023″ |
| Pump Type | Endurance Vortex MaxLife Pump with rotating rod technology |
| Pump System | ProConnect 2 quick-change pump replacement |
| Pressure Control | SmartControl 3.0 for consistent spray pressure |
| Drive System | Precision Advantage Drive — hardened steel gears with lifetime warranty |
| Frame Type | Lo-Boy configuration for easy pail access and low center of gravity |
| Included Accessories | Contractor PC Gun, RAC X LP 517 tip, 50 ft BlueMax II hose, and TSL |
| Weight | Approx. 154 lb (70 kg) |