1、The ball valve is made of fine brass,durable and has long service life. 2、High pressure endurance.The ball valve can withstand high pressure. 3、Can be used for household air conditioning pressure-preserving after pumping out pressure,automotive air conditioning adding pressure and pressure-preserving,air conditioning vacuum gauge accurate pressure-preserving. 4、Eliminate the danger of leakage of the fluoride tube, and insure more accurate pressure. 5、The valve is stable and has great performance while using. Features: The ball valve is made of fine brass,durable and has long service life. High pressure endurance.The ball valve can withstand high pressure.  Can be used for household air conditioning pressure-preserving after pumping out pressure,automotive air conditioning adding pressure and pressure-preserving,air conditioning vacuum gauge accurate pressure-preserving. Eliminate the danger of leakage of the fluoride tube, and insure more accurate pressure. The valve is stable and has great performance while using. Specification: Material:Brass Internal Thread: G1/4'' Switch Pattern:Knob Package List: 1*Valve