Composed of: Circulation pump in energy class “A”delivery 6mt Thermostatic valve with setting 20°- 50°C Balancing lockshield One way flow valve Temperature thermometer Safety thermostat with reset for stopping the circulator in case of accidental exceeding of set temperature (in respect of European legis. 2008/125/CE) Neccessary 3 piece preset fittings for connecting manifolds N.B. manifolds are not included in the price.