Expansion Vessel fits:

Worcester Greenstar 25 CDI

Worcester Greenstar 29 CDI

Worcester Greenstar 30 CDI

Worcester Greenstar 34 CDI

Worcester Greenstar 35 CDI

Worcester Greenstar 37 CDI

Worcester Greenstar 38 CDI

Part Number: 87154072960

Capacity - 10 Litres Gross (7 Litres Net)