For use with 110mm (external) soil pipe.
110mm soil pipe has internal diameter of 100mm.
Prevents condensed water from running back down the duct towards the fan in vertical PVCu pie ducted applications.
Not suitable for flexible duct run although you can join flexible ducting to soil pipe using a male connector.
Collected water may be piped to a convenient collection point.
Grey: 20mm drain off point.
length 85mm