API dust cap

API dust cap fit for API valve, can be used as secondary seal ,designed to can be operate by one hand, is very easy. It can not only make sure the seal,but also maintain the pressure. It has the feature of light and solid. Feature: Light casting AL structure,long service life,can protect the surface of lift valve Operate easy,can be used by one hand Fit the API 1004,the locker is hard to open