Worcester Bosch Expansion Vessel Unit 87186849450

This Worcester Bosch expansion vessel is a genuine replacement part designed to protect closed water systems from excessive pressure. The model 87186849450 is a small tank that is filled with air to cushion pressure increases, helping to maintain reliable performance and correct operation of compatible heating and hot water systems. Supplied with an O-ring and fixing screw, it’s a brand-new Worcester product covered by the manufacturer’s guarantee.

Designed for use with Worcester Bosch systems, including Greenstar and CDi models, this expansion vessel supports efficient operation and long-term durability. As a manufacturer-approved component, it helps safeguard the system against pressure fluctuations, contributing to dependable performance of heating and hot water installations.

• Genuine Worcester Bosch expansion vessel, model 87186849450
• Protects closed heating and hot water systems from excess pressure
• Small tank filled with air cushions pressure changes
• Supplied with O-ring and fixing screw
• Suitable for Greenstar/CDi systems
• Covered by a manufacturer’s guarantee