✅ Automatic air vent valve for boiler, Connection 3/8.✅ Models: VC-UCM, UIH-115/2/TC, VHWS242, VMW ES 24/282/3-5.✅ C.O. 061707.✅ Maximum working pressure: 10 bar. Maximum air discharge pressure: 2, 5 bar. Fluid temperature range: 0–120 °C. Material: brass. compatible with Vaillant.