Expansion vessel 18l De Dietrich BRO368894

An expansion vessel is an essential part of any closed-loop heating system, absorbing excess water volume as it heats up. This 18-liter model offers a mid-range capacity, making it a versatile choice for many domestic boiler installations. It helps prevent pressure fluctuations and reduces wear on other boiler spare parts. When selecting a replacement, ensure compatibility with your system's requirements for optimal performance and safety.