Comet P40 - 300 PSI 11.0 GPM Pull StartGas Soft Wash Unit

This professional soft wash system delivers low pressure with high water volume, using specialized detergents to safely and effectively clean delicate surfaces. Ideal for roofs, siding, wood structures, and other sensitive materials, soft washing provides powerful results without the damage caused by high pressure.

Powered by a commercial-grade Honda engine, this unit offers an excellent weight-to-power ratio and is engineered for all-day, everyday use in demanding commercial environments.

A gear-drive system reduces the engine’s 3,500 RPM down to 550 RPM at the pump, increasing efficiency and extending pump life. The high-volume Comet diaphragm pump features chemical-resistant wet parts, making it fully compatible with aggressive soft wash chemicals.

Designed with durability and serviceability in mind, this unit includes a single-piece manifold to reduce leak points and speed up maintenance, along with multiple reinforced components for long-term reliability.

Key Features

• 300 PSI / 11.0 GPM soft wash system
• Commercial Honda pull-start gas engine
• Gear drive system (3,500 RPM engine to 550 RPM pump)
• Commercial-grade Comet diaphragm pump
• Chemical-resistant wet parts for soft wash detergents
• Single-piece manifold for fewer leaks and easier service
• Molded insets that cannot come loose
• Bolt-on pressure regulator to prevent leaks during adjustment
• Aluminum head plates to prevent flexing
• Metal oil cup for added impact resistance
• Actual product may vary slightly from images shown.

Package Information

• Weight: 90 lbs
• Dimensions (L × W × H): 32″ × 23″ × 22″