Thermostatic Radiator Valve Head w/ Large, Easy to Read Numbers, Non-Electric

This model is a modification of 551013066 valve head and comes with larger handle and larger, easy to read numbers.
This thermostatic radiator valve head is used where individual temperature control of the radiator is desired, and is installed over the thermostatic valve body which is included with the radiator.
The valve head has (7) manual settings: 0 - OFF, 1 - 54°F, 2 - 61°F, 3 - 68°F, 4 - 75°F, 5 - 80°F and * - Low Flow (freeze protection mode).
Non-electronic and does not require electricity or external controls to operate.