This refurbished Vaillant flow sensor is supplied with the exact manufacturer part number 178988. It is offered as a replacement component for systems that accept this part number.
Customers should verify the MPN 178988 and confirm compatibility with their boiler before ordering. Do not rely on this listing alone to determine fitment.
Installation should be carried out by a suitably qualified engineer where required. Avean recommends professional fitting to ensure correct installation and safe operation.
For London trade-counter collection or nationwide delivery, check live availability and contact Avean Boiler Parts before travelling to collect. This listing states the condition as refurbished only.
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