Uni RTHL Thermostat anthracite, with zero position, 10 °C - 70 °C, M 30 x 1.5 - Oventrop GmbH & Co. KG
Uni XH" — Oventrop Corporation
Thermostat for maxi/mini thermostatic valves manufactured until 1974 M 40 x 1.5, 7-28 °C, 0 * 1-5, liquid sensor, anthracite/white - Oventrop GmbH & Co. KG