ECOSPA Anthracite Radiator Valve Set – Thermostatic TRV + Lockshield, Frost-Protection Control your heating with precision and style using the ECOSPA Radiator Valve Set. Perfect for anthracite central heating radiators and towel warmers, this high-quality valve pair lets you balance comfort, efficiency, and design. Key Features Thermostatic Radiator Valve (TRV) Precisely adjusts room temperature by regulating incoming hot-water flow Smooth, silent operation backed by premium internal components Lockshield Valve Balances your system by controlling the flow of water leaving each radiator Ensures even heat-up times across all radiators for maximum efficiency Frost-Protection Mode.