Features: Designed for most brands and models of pressure washer. Quality control make the pressure washer gauge have a minimizes vibrations for accurate readings and have a longer service life. The reading of Pressure washer gauge is up to 5000 PSI. The function is to monitor how much pressure is your pressure washer putting out. Standard American typ 3/8" Quick Coupler Socket and 3/8’’ Brass Quick Coupler Plug, creates a good air tightness, no water leakage during use and can make the measurement more accurate. Connect the pressure washer test gauge between pressure washer pump and Hose. It's fits most Pressure Washer Brand. Note: If your pressure washer is over 5000 PSI, it is not recommended to use this pressure gauge. Specifications: Material: stainless steel Size: approx 11x6.6x3cm/4.3x2.6x1.2in Thread: 3/8-inch Package Includes: 1x Pressure Washer Gauge note: Please allow 1-3cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item.