The world's largest supplier of underfloor heating

WATTS Bypass

WATTS Bypass

In stock

RRP: £176.39Our Price£73.49 inc. VAT
Next working day delivery
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The bypass valve serves to maintain the pump pressure in heating systems at a constant level. This is necessary when the radiator / underfloor heating thermostat valves are closed or almost closed.


The bypass module is simply mounted on the radiator / underfloor heating circuit manifold. The flat-sealing screw connection ensures rapid and reliable long-term connection of the module to the manifolds.

Delivery options

Our delivery costs vary according to order size and location. For more information see our Delivery page.

As standard we include FREE 2 - 3 working day delivery to all UK mainland addresses (excluding, Channel Islands & Eire) on all heating products.

All orders placed after 3pm on a Friday and at the weekend will be processed on Monday and placed on next working day delivery

Please note: orders must be placed before 3pm to be eligible for our Next Working Day, Next Working Day Before 10:30am and Saturday delivery options.