Graco 17E826 GMAX II 3900 Standard Series Gas Airless Sprayer, Lo-Boy
$6,906.00
$9,450.00
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Graco 17E826 GMAX II 3900 Lo-Boy delivers exceptional power and reliability for professional contractors, built to handle large-scale spraying projects with ease.
- Engine: Honda GX120 (120cc)
- Pressure: Up to 3,300 PSI
- Flow Rate: 1.25 GPM — supports dual-gun use
- SmartControl 3.0 ensures consistent pressure
- Endurance Chromex Pump with quick-change ProConnect 2 system
- Lo-Boy Frame offers stability and easy transport
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Powerful and Reliable Gas Airless Sprayer for Professional Contractors
Compatible Machines
- Graco GMAX II 5900 — shares many pump, hose, and tip components.
- Graco GMAX II 7900 — compatible accessories and spray system parts.
- Graco GMAX 3400 — partial compatibility with hoses and spray tips.
- Graco GMAX II 3900 Hi-Boy — same pump and engine system, different frame setup.
- Other Graco Gas Airless Sprayers using RAC X tips, BlueMax II hoses, and ProConnect pump parts.
Overview
Graco 17E826 GMAX II 3900 Standard Series Gas Airless Sprayer, Lo-Boy is designed for professional contractors who need reliability and power on every job site. It offers higher performance, dual-gun capability, and advanced electronic pressure control for consistent spray patterns on a variety of coatings and surfaces.
Key Specifications
| Engine Type | Honda GX120 (120cc) |
|---|---|
| Maximum Working Pressure | 3,300 PSI (22.8 MPa) |
| Maximum Flow Rate | 1.25 GPM (4.73 L/min) |
| Maximum Tip Size | 0.036" (Single Gun) / 0.023" (Dual Gun) |
| Pump Type | Endurance Chromex Pump with ProConnect 2 system |
| Pressure Control | SmartControl 3.0 for consistent spray pressure |
| Frame Style | Lo-Boy frame — stable and easy to transport |
| Included Accessories | Contractor PC Spray Gun, RAC X LP 517 Tip, BlueMax II Hose (50 ft), Tip Guard, TSL 4 oz |
| Dimensions (L × W × H) | 46.9" × 24.4" × 26.4" |
| Weight | Approx. 123 lbs (56 kg) |
Key Features
- Dual-Gun Capability for handling large projects efficiently.
- SmartControl 3.0 ensures smooth, consistent spray patterns.
- ProConnect 2 Pump Replacement System enables quick maintenance on-site.
- Durable Honda GX120 Engine provides reliable performance in tough environments.
- Lo-Boy Design offers a stable, low center of gravity for easier transport and storage.
Frequently Asked Questions
The Lo-Boy version has a lower frame for better stability and easier transport, while the Hi-Boy design sits higher and is easier to move around rough job sites.
Yes, the Graco GMAX II 3900 supports dual-gun spraying for increased productivity on larger surfaces.
It can spray a wide range of coatings, including latex paints, acrylics, primers, and enamel coatings, making it suitable for commercial, residential, and industrial applications.
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