Thermostatic Radiator Valve TRV Head Only Replacement Drayton TRV4 Compatible, M30 x 1.5 Thermostat Control Knob, Chrome & White Hulthor

Universal TRV Head Replacement Designed as a direct replacement for Drayton TRV4 radiator valves and compatible with most M30 x 1.5 threaded valve bodies including Honeywell, Myson, and other standard UK fittings. No need to drain your system — simply swap the head. Precise Thermostatic Temperature Control Easily adjust your radiator thermostat from 7°C to 28°C. The built-in wax sensor automatically opens and closes the valve to maintain your chosen room temperature, keeping every room comfortable without wasting energy. Built-In Frost Protection Protects your home even when you're away. The valve activates automatically when temperatures drop near freezing, preventing costly pipe damage during cold snaps. EN 215 Certified & Pressure Tested Fully tested to withstand a maximum pressure difference of 10 Bar, meeting the European EN 215 standard for thermostatic radiator valve heads. Built to last with reliable, consistent performance. Chrome & White Finish A sleek, modern design that blends seamlessly with any radiator and interior décor. The durable chrome top and clean white body provide a professional look while the compact head fits neatly without obstructing curtains or furniture.