1 / 2inch size of gate fits most radiators and meets different requirements The heating gate has a maximums operating temperature of 120°C and a maximums operating pressure of 16, which makes it suitable for a variety of heating systems The heater vent set is ideal for use in different environments such as apartments, offices or other rooms with radiators This radiator plug is make of brass and is very resistant to and the influence of external factors Suitable for both hot and cold water The ventilation heater is designed for manual ventilation of radiators in central heating systems With the included ventilation for radiators, gate can be easily opened and the radiator can be easily and efficiently ventilated, Manufacturer: Zeizafa