Ariston 60001968 O-ring D: 47.63mm X 3.53mm

This is an Ariston O-ring with a 47.63mm outside diameter and a 3.53mm cross section, supplied under part number 60001968. It is a circular elastomeric seal used to close the joint between two mating faces on Ariston standard water heaters, preventing water from tracking past the connection under normal operating pressure. O-rings of this size are typically seated in a machined groove or against a flat face on a union, flange or spigot, where they are compressed as the joint is tightened.

• Water weeping or a visible drip from the joint the O-ring seals
• A damp patch, crusting or limescale staining around the union or flange face
• The O-ring feels hard, flattened or brittle rather than pliable when the joint is opened
• Cracking, nicks or a flattened cross section visible on the ring itself
• Repeated pressure loss or air drawing into the system at the sealed joint

• Confirm the part number on the appliance data plate or in the manufacturer's parts list matches 60001968
• Measure the old O-ring across the outside diameter and across the cross section before ordering, as similar part numbers cover different sizes
• Check whether the joint also uses a gasket, washer or seal kit that should be renewed at the same time
• Note the model and serial number from the data plate so the correct variant can be confirmed