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Allows for expansion in the hot water system.
£69.71 + VAT
24 in stock
Our postage starts from £5.95.
Spend over £100 for free delivery.
See our manual and user guides for technical guidance and step-by-step instructions on installing and using our underfloor heating, thermostats and renewables systems.
If you can’t find answers to your questions in our online support section, our technical support advisers are on hand to help.