The Vaillant 061707 Automatic Air Vent is a crucial pressure safeguard for your central heating unit. It effectively releases accumulated air using a float mechanism. As water circulates through your heating or cooling system, the float inside the automatic air vent opens or closes accordingly. This part is compatible with various Vaillant ranges including Aquaplus, Combicompact, Ecomax, Thermocompact, Turbomax, VC, VCW, VU, and VUW. Please ensure that all boiler spare parts are fitted by a certified Gas Safe engineer. Orders placed before 4 pm are typically dispatched for next-business-day delivery.