Polybutylene Barrier Pipe for heating and potable water systems Compatible with all other BS7291 specified fittings and systems WRAS Approved 5 layer EVOH barrier for resistance against gases such as oxygen, nitrogen and carbon dioxide 25 year manufacturers gurantee against product defaults Coils come tightly wrapped for easy storage Manufactured to EN ISO 15876-2:2003 and British BS7291 Extremely flexible and resistant to high pressures and temperatures Can be used on Underfloor Heating Systems Fully recyclable Pack Quantity = 20