With a 5 year manufacturers guarantee and built by The Radiator Company the The Profile TRV valves are of the highest quality. The thermostat makes this an ecologically friendly valve set as they regulate the heat output insuring you use only what is needed to attain and maintain your selected temperature. The price includes both a thermostatic and lockshield valve (a complete pair). They suit most of our range of radiators (both contemporary and modern) but should you be unsure of the suitability please do not hesitate to call our expert staff on 0800 055 6450 for friendly advice.