Hyco 3.5 Bar Expansion Vessel Kit 2 Litre

Expansion vessel and check valve for 5, 10 and 15L speedflow unvented water heaters. · · · Pre-charged with air · · EPDM rubber diaphragm · · Protects your heating system from excessive pressure · · Absorbs thermal expansion of water · · Extends the lifespan of your boiler and other heating components