Thumb Score: +15 Best Buy via eBay has Greenworks 1900 PSI 1.2 GPM Electric Pressure Washer Combo Kit (5125702) for $99.99 (price shown in cart). Shipping is free. Best Buy has Greenworks 1900 PSI 1.2 GPM Electric Pressure Washer Combo Kit (5125702) for $99.99. Shipping is free.