【SCIENTIFIC DESIGN】: 4PCS 25° fan-shaped stainless steel nozzles with large watering area, Ensuring efficient use of pressure while increasing work efficiency. 【PRESSURE RANGE】: 1500 PSI to 4000 PSI, 2500 PSI or higher will have best status. Under car wash make sure your working pressure washer is higher than 1500 PSI before you use it. 【FLEXIBLE INTERFACE】: Pressure Washer Undercarriage Cleaner is 1/4 inch male plug for quick connect and release, Connect under car washer to pressure washer wand. In order to handle wand easily, can connect it to pivoting coupler, then connect pivoting coupler to wand. 【EASY TO CLEAN】: Effectively avoid crawling under the car to clean. It can effectively clean the sediment, road dirt, oil and fuel contaminants under any model, commercial vehicle, truck, trailer, SUV, etc. After cleaning, You will feel no different from the new one. Product Information Material: Aluminum, Brass, Hard Composite Casters, Stainless Steel Nozzles. Size: 13 inch Weight: 1.2kg Max Temp: 140°F Casters: 2 pcs Spray distance: 3.8 meters Scope of application: cleaning the car chassis Package: 1 x 13 Inch Undercarriage Cleaner 2 Pcs 13 Inch Extension Wand 1 Pcs 30 Degree Angled Wand