Vaillant Expansion Vessel 181051 18-1051

Ecotec Plus 624 VU 246 3-5

The Vaillant 181051 Expansion Vessel is a genuine Zilmet-manufactured component, made in Italy, and suitable for all Vaillant Ecotec, Ecomax, and related boiler models. Designed to absorb the natural expansion of heated water in sealed heating systems, it prevents over-pressurisation, protects key components, and ensures safe boiler operation.

• Part number: 181051

• Genuine Zilmet expansion vessel – made in Italy

• Suitable for all Vaillant Ecotec and Ecomax models

• Regulates system pressure to prevent damage from surges

• Durable diaphragm membrane for long service life

• Corrosion-resistant steel construction for reliability

• Includes washer for secure installation

• Direct replacement for worn or faulty vessels

• Maintains safe and efficient boiler performance

An essential OEM replacement part to keep your Vaillant boiler running smoothly and reliably.