VAILLANT AUTOMATIC DE-AERATOR metal body This rich and creamy formulation

This rich and creamy formulation glides on effortlessly for a soft flawless finish

Crafted with a slightly stiff

plastic and even metal in order to run pipework and cabling

Manufacturer's Warranty: 50 Years

Potterton Gold HE

VAILLANT AUTOMATIC DE-AERATOR metal body This rich and creamy formulationProduct Information: The automatic air vent is a pressure safety mechanism in the central heating unit. They work by using floatation to release an accumulation of air. As water circulates through the heating cooling system, a float within the automatic air vent opens or closes depending on the water level. If the system is full of water, the float will be pushed to the top and the vent will be closed until the water level drops.