Klober’s Secret Gutter is a high performance secret gutter for use with all flat interlocking tiles which provides a secondary line of defence against wind driven rain at wall abutments. Technical Length: 3m Width: 97mm Thickness: 1.1mm Material: Black UV Stabilised PVC Features and Benefits • Cost effective alternative to lead • Lightweight and durable • Quick and easy to install • Anti-capillary rib provides extra watertightness • Can be used with all interlocking tiles.