The Xpelair SSWK range allows for easy installation of your 4-inch extractor fan entirely from inside your home, eliminating the need for ladders or battling the weather. It features a white, round grille that folds for simple attachment from the inside, and a telescopic wall tube that adjusts to fit your wall thickness. This kit is designed to complement the Simply Silent range of 100mm extractor fans and ensures efficient and quiet ventilation. The durable components are built to last, and the precision-engineered design minimizes noise. The kit includes a telescopic wall tube and an external grille that folds in half to pass through the wall and then springs back to a flat position for a secure fit, simplifying the installation process and ensuring a neat, professional finish. Backed by a 1-year manufacturer's guarantee.