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.
Clear Vessel Diameter (mm)
Other (7) 0-99 (1) 100-199 (1) 200-299 (11) 300-399 (9) 400-499 (11) 500-599 (4) 600-699 (5) 700-799 (9)View More
Stock Status
In Stock Only (16)
