I have a total of 10 valves available. All tested and working from my own heating system. There is some slight discolouration on the white plastic but the valves come from a smoke free home. Each valve is sold with the base that allows it to fit to a directly to replace a standard TRV. You will need additional kit to be able to program or control these valves. Postage cost is the same no matter how many valves you choose to buy. Uk postage only.
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