£46.62
Our DTW storm collar is used to ensure that the area where the flue passes through the roof / flashing is kept watertight. Dura Twin Wall (DTW) has been designed by Flue & Ducting Ltd with the installer in mind and is available for same day and next day delivery UK wide. We have 5, 6, 7 and 8" all in stock in all 3 depots in silver and our u...