Blauberg heavy duty flexible ducting will help to get your ventilation job done quickly and easily.Lightproof and length adjustable. Fits fan, filters and duct pipes.Designed with Grow tent and indoor garden applications in mind. Connects to inline fans, filters and air cooled light fixtures. Reflects heat and light.Blauberg UK heavy duty lightproof ducting is the best choice for your ventilation set up. Manufactured to the highest quality, This ducting is perfectly designed to suit any ventilation requirements.