Caleffi 10in1 Temperature & Pressure Combi 20mm Low lead

10 in 1 combined group valve for pressure and temperature control in domestic water systems. Consisting of:
-539H series combined unit, cold water circuit
-539H series combined unit, hot water circuit
-adjustable thermostatic mixing valve and advanced thermal performance and anti-scald function
-connection tee complete with check valve
-pressure gauges (optional)

PRV’s can be installed in either vertical or horizonal pipework and must not installed upside down causing the valve to fail and voiding any warranty.

Cannot be installed below ground or outside location without protection from frost and weather. Please follow the installation manual in the packaging.