Perforated terrace extender

Perforated terraced extenders TOPWET for balconies and terraces with the pavement. The package includes three drainage rings for smoother water runoff from the main waterproof system. The terraced extenders can be extended with another drainage ring TW ODK by about 1 1/3" or the extenders TWN TER. The extenders height is adjustable; the thick-walled polyamide PA6 UV Stabil design.