Potterton Vessel & PRV Kit 985104 Sustain 18s (GC No. 4101938) 33mm (7) - REGQ729 -

33mm (7) - REGQ729 - 40

Genuine Vaillant component built to exacting specifications for reliable performance and system longevity

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Potterton Vessel & PRV Kit 985104 Sustain 18s (GC No. 4101938) 33mm (7) - REGQ729 -Kit contains: Expansion vessel Pressure relief valve GasPart Vessel Kits make boiler pressure issue repairs as easy as possible. Good practice suggests replacing a PRV at the same time as a faulty vessel. A faulty vessel can cause damage to the PRV resulting in the boiler still showing a low pressure fault. Buying both together is simple and will help eradicate further problems.