Vaillant Ecofit 8 Litre Expansion Vessel - Refurbished | MPN 0020237676

When it comes to keeping your Vaillant Ecofit system running smoothly, every component plays a role — and the Vaillant Ecofit 8 Litre Expansion Vessel (MPN 0020237676) plays one of the most critical. As your heating system warms up, water expands. Without a properly functioning expansion vessel to absorb that increase in volume, pressure builds — and unchecked pressure is one of the leading causes of boiler damage and system failures.

With its generous 8-litre capacity, this vessel is well-suited to both domestic and light commercial heating systems, providing consistent and reliable pressure regulation throughout every heating cycle. Designed specifically for Vaillant Ecofit boilers, it integrates seamlessly as a direct like-for-like replacement — no modifications, no complications, just a straightforward fit.

• Manufacturer Part Number: 0020237676
• Capacity: 8 Litres
• Condition: Fully Refurbished
• Comes with 12 months warranty
• Features durable steel casing
• SKU: GLOW-EXPVES-0020237676

Compatible Boilers

Delivery & Returns

Order before 3:00 PM for same-day dispatch via Royal Mail 1st Class Signed For — tracked, secure, and straight to your door. Returns accepted within 30 days, provided the part is unused and in its original packaging..

Note: Before ordering, please confirm that MPN 0020237676 matches the part number on your existing vessel. Installation must always be carried out by a Gas Safe registered engineer to maintain safety standards and warranty coverage.