Accessories for drains

• On roofs with a ballast layer of gravel it is necessary to use a perforated protective dome
• Wide range of accessories for walkable roofs
• Terrace extenders for drainage from the paving surface level
• Possibility of using a odour trap inserted in the drain

How the extenders can be universal for various diameters of roof and terrace drains DN 3" and 4"?The drains have a neck or an integrated sleeve of the same construction and diameter. The drain construction only differs below the neck. Ensuring that all the accessories are universal.What extender shall I use if I have screed finish which is at the level of the drain neck?For this type of finish, there is TW TER extender which can be shortened according to the height of the screed and paving.