Danfoss RTW thermostatic radiator valve combi set, OEM order code 013G7120. The set combines a RTW self-acting thermostatic sensor (liquid-charged, built-in room-air element, setpoint 8 °C … 28 °C °C, frost setting) with a 15 mm bidir angle radiator valve — RTW COMBI PACK 15MM. The sensor modulates the valve in proportion to room temperature with no external power or wiring; the bi-directional valve body allows flow in either direction so it fits both feed and return radiator connections. Colour White RAL 9016. Set contents: 2-elements. Genuine Danfoss part; data quoted verbatim from store.danfoss.com (code 013G7120). OEM P/N 013G7120, EAN 5702425119743. HS 8481.80.