Thermowatt RTS-3 also know as RTS181316
Genuine Thermowatt RTS-3 thermostat as found in many UK unvented water heater elements.
Suitable for use in:
Kingspan (Range) Tribune
Telford Tornado and Telford Tempest
R M Cylinders Stelflow
Joule Cyclone
Also suitable as a direct replacement for the Cotherm TSE00187
Dark brown cover and red control knob, with 6.3 spade terminals for direct connection into suitable heating element.