This unloader valves is make of strong materials to withstand the rigor of high pressure cleaning, for enduring and stable Helps maintain consistent pressure levels for efficient cleaning and results on a variety of surfaces : This unloader valves has a simple design, and users can quickly replace worn parts without the assistance of a professional This unloader valves is a solution for maintaining your pressure washer in top condition This unloader valves replaces 16030, 190627GS, 190594GS, 190593GS Suitable for many different brands and models, Manufacturer: YIGZYCN