The o-rings, washers and gaskets are used in many different places within your heating unit. They are used to create seals between pipework and other parts within the boiler.
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Technical Specifications
ERP (Energy Efficiency)NToilet Cistern CapacityFTW--ERP RatingNot ApplicableSupplier Part Number531299032Brand NameHamworthy
Reviews
763242
Ham 531299032 O-Ring Ref 00-832Nbr70 -For Vr420Va1004