Adapter for cable entry for pipe Ø 20 mm Black glossy Color-matching installation pipes in pure white glossy and black glossy are available wholesale from several manufacturers. Example: Fränkische Rohrwerke Gebr. Kirchner GmbH & Co. KG Pure white glossy version (RAL similar to 9010) - Plastic straight pipe M20, item no. 22520120 - Clamp M20, item no. 22572020 Black glossy version (RAL similar to 9005) - Plastic straight pipe M20, item no. 22610020 - Clamp M20, item no. 22571020