The Inta i-therm range of thermostatic radiator valves are designed to be fitted in any orientation and with water flowing in either direction. Clever product design means that the i-therm adjustable thermostatic head doesn’t collect and retain dust and dirt ensuring that it will continue to operate efficiently, and consistently, for years to come. Class A efficient thermostatic radiator valve Keymark approved to EN 215 Liquid filled sensor Anti chatter cartridge Fully bi-directional Frost protection setting. This is a 15mm angled thermostatic radiator valve in white.