HL85NProduct overview / Sealing kits / Extensions / extensionsextension with flange incl. O-ring  HL85N-3020Product overview / Sealing kits / Extensions / extensionsExtension with flange and O-ring and deep, pre-installed lot cover, fitting to HL3020 series.  HL85NCProduct overview / Sealing kits / Extensions / extensionsextension d 110mm CeraDrain with polymer concrete collar incl. O-ring  HL85NHProduct overview / Sealing kits / Extensions / extensionsextension incl. O-ring with bitumen membrane  HL320Product overview / Sealing kits / Extensions / extensionsextension 35mm/d 89mm  HL340NProduct overview / Sealing kits / Extensions / extensionsextension 80mm/d 110mm incl. O-ring  HL350Product overview / Sealing kits / Extensions / extensionsextension 130mm/d 145mm  HL350.0Product overview / Sealing kits / Extensions / extensionsExtension with flange, fits to roof drain series HL62, HL64 and HL69.  HL350.1Product overview / Sealing kits / Extensions / extensionsextension 180mm/d 145mm with flange and waterproofing kit HL84  HL350.1HProduct overview / Sealing kits / Extensions / extensionsextension 180mm/d 145mm with bitumen membrane  HL350.2Product overview / Sealing kits / Extensions / extensionsextension 130mm/d 145mm with inlet DN40  HL618Product overview / Sealing kits / Extensions / extensionsExtension 130mm/d 195mm with flange  HL618HProduct overview / Sealing kits / Extensions / extensionsextension 130mm/d 195mm with bitumen membrane  HL620Product overview / Sealing kits / Extensions / extensionsextension 105mm/d 195mm  HL3400Product overview / Sealing kits / Extensions / extensionsElongation element d 146 mm/ 200 mm incl. O-ring  HL8500Product overview / Sealing kits / Extensions / extensionsElongation element 200 mm/ d 146 mm with flange and O-ring  HL8500HProduct overview / Sealing kits / Extensions / extensionsExtension with bitumen flange for HL3100T and 5100T series