An Ideal air pressure switch is a safety device which checks that the fan is fully operational. It ensures that, if the fan stopped working within the boiler, there would not be a buildup of toxic fumes with no means of removing them safely.
Fits multiple appliances
Technical specification
Waist Sizeaa29cf13gvTypeWater Pressure SwitchERP RatingNot ApplicableSupplier Part Number176480Brand NameIdeal