POTTERTON PROMAX SYSTEM 12 15 18 24 32 HE A PLUS BOILER PUMP O RING 247429
Potterton Promax 32 HE Plus A System - 41-592-04. Potterton Promax 32 HE Plus System - 41-591-93. Potterton Promax 18 HE Plus A System - 41-592-02. Potterton Promax 18 HE Plus System - 41-591-92. Potterton Promax Combi 28 HE Plus - 47-590-04.