Genuine Truma FrostControl safety and drain valve kit for caravan, campervan and motorhome water-heating systems fitted with 12mm John Guest push-fit pipework.

The temperature-sensitive valve automatically drains the boiler when there is a risk of freezing, helping prevent costly frost damage to the water heater. The valve can also be operated manually when the water system needs to be drained.

Suitable for selected Truma Combi, Combi E, Combi D and Truma Boiler systems. Please check your existing plumbing uses 12mm JG connections, as Truma also produces the 34020-00237 TB version for 10mm flexible hose.