Nordon 100mm diameter relief port.
The Nordon Pressure Relief Vent adapts to a wall thickness from 65mm to 150mm thick and is secured without the use of screws or rivets. Extension sleeves are available for thicker walls.
Heater wire to suit D06 relief port. 8W-240V to prevent freezing of Relief Port.
Dimensions: 160 x 160mm
Material: Non-corrosive food-safe injection moulded plastic
* Multiple ports can be used in larger rooms.