Ariston Automatic Air Vent Plus O ring 998643

City Plumbing

The Ariston automatic air vent is a pressure safety device in the central heating unit. They work by using buoyancy to release built-up air. As water flows through the heating or cooling system, a float within the AAV(automatic air vent) releases.

Direct Heating Spares

ARISTON 998643 AUTO AIR VENT. Genuine brand new Ariston product, covered by a Ariston manufacturer's guarantee.