1.Features a thickened copper ball valve, ensuring superior quality, longevity, and reliable performance. 2. Equipped with an upgraded pressure regulator for more accurate and stable air pressure adjustment. 3. Industrial-grade silencer with a compact design that significantly lowers noise levels during operation. 4.The mixed-net suction cup effectively prevents debris entry, maintaining smooth workflow and improving efficiency. 5.Constructed with a thickened stainless steel buffer cup for excellent corrosion resistance and consistent, stable output.