Description
The Comet ZWD4040G is a premier industrial-grade triplex pump designed for direct-drive gasoline engines. Delivering a powerful “4-by-4” performance (4.0 GPM at 4000 PSI), it is one of the most popular choices for professional pressure washing contractors who require maximum cleaning efficiency and rugged reliability.
Technical Specifications
| Feature | Specification |
| Flow Rate | 4.0 GPM |
| Max Pressure | 4000 PSI |
| Speed | 3400 RPM |
| Shaft Diameter | 1″ Hollow Shaft |
| Flange | Gas Engine Flange (Standard SAE J609) |
| Inlet Port | 1/2″ FPT |
| Outlet Port | 3/8″ FPT |



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