The Flomasta White/Chrome TRV Thermostatic Radiator Valve and Lockshield is a high-quality central heating radiator designed for use with hydronic systems. Made from chrome material with a white finish, this valve offers 5 or more heat settings and features a rotary knob control style for easy adjustment. It has a BTU heating rating of 2000-2999 BTU and is suitable for both horizontal and vertical radiator orientations. Manufactured in the United Kingdom and backed by a 5-year warranty, this unit is a reliable and energy-efficient option for heating homes.