For maximum chemical compatibility and consistent delivery, choose this Comet P36GR & GX160 Engine Assy for your sprayer. Perfectly manufactured to handle low-pressure applications where corrosive chemicals are sprayed - especially in the soft wash industry. With a maximum pressure capacity of 150 PSI, an upper flow limit of 9.6 GPM and an impressive 5.5 horsepower Honda commercial-grade engine, you'll value it for sprayer applications of pesticide, herbicide and liquid fertilizer.