Honeywell Home VTL120 is a matching bi-directional thermostatic radiator valve and lockshield valve set. White head, chrome plated angled Valencia bodies with 15 mm compression connections, 1/2" BSP TM radiator tailpieces and TRV has integral balancing adjustment and energy-saving button. Max. flow temp. : 130°C. European Standard EN215 and Keymark approved. TRV body is suitable for use with the Evohome electronic TRV head.