TRV4 Classic sensing head, 15mm angled valve with fittings and 15mm angled lockshield. Liquid Sensor Bi-Directional Valve Body Compression Connection Frost Protection Setting Non-Positive Shut-Off Lockshield Option Range Limit Feature Energy Saving Trust Recommended A thermostatic radiator valve allows you to set a radiator at a different temperature, so you can heat your home only where required. This can help reduce your home's energy consumption.
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