Ariston Chaffoteaux gaskets, O-rings, seals and washers are used in most boilers to provide a seal and prevent the loss of air, gas and water. Many of these O-rings, gaskets, seals and washers are unique to a particular location within the appliance and are rarely interchangeable due to size and thickness. They allow the system to be sealed, reducing the opportunity for leakage.

Brand Name	Chaffoteaux