This White Deluxe Corner TRV Valve Set by Eucotherm tucks neatly against the wall, hiding horizontal pipe runs and giving radiators a crisp, easy-clean finish. Supplied as a thermostatic head and matching lockshield on solid-brass corner bodies with standard 15 mm compression × ½″ BSP tails, it drops straight onto almost any wet-system radiator for a tool-light install. Simply turn the numbered dial from the frost-protect star to setting 5 and the liquid-sensor valve holds roughly 7–28°C automatically, stopping rooms from overheating and protecting pipes in cold spells. BEAMA-backed studies estimate that fitting TRVs can cut household heating energy by about 18 %, and Eucotherm supports the set with a two-year manufacturer’s guarantee for added confidence.