Truma Frost Control current free safety drain valve empties the boiler automatically if there is a risk of frost (at around 3 degrees C) and in the event of excess pressure via a charge nozzle. Only once the ambient temperature has risen to a level where frost is no longer a risk (around 7 degrees C) can the valve be closed by hand and the boiler filled again. Suitable for: Electric boiler, Gas / electric boiler. Push On Barbed Fitting shown. Please see More Info for JG fitting. Select Below.
34020-00237
34020-00238