Open box the only issue is its missing the screw cap piece for adjusting the pressure. Other than that it's in new unused condition. For anyone in need of a powerful and reliable pressure washer pump, the YAMATIC Horizontal Triplex Pressure Washer Pump is an excellent choice. With a 3/4 shaft and the ability to reach a maximum pressure of 3300 psi, this pump is perfect for tackling tough outdoor cleaning tasks. It has a flow rate of 3.0 GPM, ensuring that you can get your cleaning done quickly and efficiently. This pump is manufactured by YAMATIC and is compatible with a variety of pressure washers. It is suitable for use in Home & Garden, Yard, Garden & Outdoor Living, and Outdoor Power Equipment. The pump is easy to install and comes with all the necessary hardware and instructions. With its high-quality construction, you can be sure that it will provide you with reliable performance for years to come.