BJ's Wholesale Club offers the Generac 3,100-PSI 2.4-GPM Pressure Washer for $399.99. At checkout, that price drops to $279.99. With $19.49 for shipping, that's the lowest price we could find by $99. It features a 196cc OHV engine, 0.5-gallon detergent tank, a 25-foot hose, and four nozzle tips.