Expansion vessels are small tanks used to protect closed water heating systems and domestic hot water systems from excessive pressure which can become hazardous otherwise. Without an expansion vessel, the water system cannot allow cold water to expand as it is heated therefore creating a dangerous environment. If you've not found what you're looking for, check out our other range of Plumbing products.
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Check stock in your area
Delivery and collection options for
Change locationDelivery Options
Type
Brand
Price
Vessel Capacity (Litres)
Vessel Height (mm)
Vessel Diameter (mm)
Stock Status
