CCYKXA automatic brass air vent valve with male thread for boiler, radiators, solar water heater, water tank (DN20 1.9 cm)

1. This valve features high-temperature resistance, rust protection, and reliable sealing. 2. Made of high-quality brass, corrosion-resistant and durable. 3. The exhaust mechanism is highly reliable, and the individual components are precision-cast. 4. The thread size is a standard 1.27 cm, making it easy to install. 5. This quick exhaust air control valve is an excellent replacement for a broken valve.