•Material: TRV radiator valves are made of high-quality alloy and plastic, not easily damaged, durable and practical to use.
•Package: You will get 3pcs white radiator thermostat head only, valve is not included, which can be used for a long time.
•Design: The radiator thermostat valve can sense changes in the outside temperature, and is fit for 30 x 1.5 threaded connections.
•Function: Radiator valve head has antifreeze protection and adjustment functions. The zero setting ratio upper limit is 0, *, 1-5.
•With 5 levels of modulation: The radiator head is easy to use, if you want to turn off the thermostat, just use the modulation index arrow 0.