Klober rainwater outlets are available with shatterproof leaf filters. They are available as a single piece unit, used for ventilated flat roofs, or they can be combined with an adjustable height base section for use with unventilated flat roofs. The PVC flange diameter is 285mm. Key Features Slender inlets for narrow roof penetrations, which can be inserted into existing pipes PVC Flange provides perfect waterproof connection of PVC membranes and liquid plastics. Variable height options Weather, frost and UV-resistant Optional pipe extension allows for all thermal insulation thicknesses Area of application Single-piece flat roof rainwater outlets are suitable for ventilated flat roofs and two-piece flat roof rainwater outlets are suitable for unventilated flat roofs. PVC Flange is suitable for welding on Bitumen and PVC Single Ply.