Four inch or 100mm venting is used for a number of applications and is quite common. It is used not only by cooker hoods, as you will see in this section, but also for tumble dryers, bathroom fans and even shower fans, it's quite adaptable for many different uses.
What we use here is a specific range of vent and ducting solutions that offer the maximum performance for your appliance but also a whole lot of flexibility that isn't always available in other ducting ranges. Any of the kits here can be expanded as you see fit allowing you almost complete freedom in how you route your vent or duct something that, for many installations, is absolutely essential.
A far more sturdy version of the classic plastic external vent cowl that can be used with cooker hoods or tumble dryers Learn More
Finding spare parts for Venting Kits cooker hoods can be challenging as they are often very specific to a model or even a production run, even if they look alike and are about the same sizes it doesn't mean that they are correct.