Suitable for compact radiators with integrated valve sets. Upper limit of null position ratio: 0, ❉,, 2, 3, 4, 5; Marked with arrows, you can easily find the desired temperature. 【Radiator Thermostatic Head】The professional -piece TRV thermostatic radiator head with M30x1.5 threaded connections, suitable for 30x1.5 threaded connections of radiator manufacturers.
