A vent cowl is used at the top of the soil vent pipe to stop birds from entering the pipe where it is open to the atmosphere.As cast iron push fit pipes and fittings are all plain ended a coupler is required to connect this cowl to a soil pipe.All of our push fit cast iron soil fittings are treated to a factory black two-pack gloss paint finish. The whole range is manufactured in grey cast iron to BS EN 1561.This soil pipe range is particularly well-suited to installations in public buildings, listed buildings and conservation projects. It is 100% recyclable.Click here to view or download full installation instructions.