The Potterton expansion vessel is for use in the Promax and Promax ERP boiler ranges. A chamber designed to protect water heating systems from excess pressure. The expansion vessel is filled with air, which acts as a cushion against system pressure surges.

A Potterton spare, this expansion vessel is for use in Promax and Promax ErP boiler ranges.  A chamber designed to protect water heating systems from excess pressure, the expansion vessel is filled with air which acts as a cushion against system pressure surges.  We know you’re busy and need to get repair jobs done quickly and efficiently. Your local parts specialist is always on hand to support you. They offer help, advice and they can get you the part you need. Your local branch stocks an in-depth range of domestic gas and oil spare parts from leading manufacturers, so you can fix it first time.

Potterton
Expansion Vessel
5117636

Trusted by Tradespeople

Potterton Expansion Vessel 5117636

Trusted by Tradespeople

Potterton
Expansion Vessel
5117636