The air pressure switch is a safety device which checks the fan is fully operational. It ensures that, if the fan stops working within the boiler, there would not be a build up of toxic fumes with no means of venting them. The printed circuit board monit
Fits multiple appliances
Technical specification
Waist Sizeab44cj19guTypeAir Pressure SwitchToilet Cistern CapacityFTW--Supplier Part NumberE631Brand NameAndrews