Alpine Ventilation has a range of snap-in egg crate grilles for air extraction. They are a great alternative to metal egg crate grilles. They are both easier to install – and the face can be clipped out and rinsed under the tap to be kept clean. Additionally they include a butterfly damper to prevent backdrafts. These grilles are very popular in bathrooms and laundries.
2 sizes are available: 150mm and 200mm.