Device duct cover, visible surfaces electrostatically powder-coated in RAL color according to manufacturer's catalog, cover and duct base must be electrically connected, including two equipotential bonding terminals GPK 63 each 2 m delivery length. VDE certified! for device duct bases: GKU ... C DKU ... C PGU 120-78 C PLU 120-78 C for cover opening: 78 mm Surface structure: Visible surface smooth Delivery length: 2000 mm Color: light gray RAL: 7035 (similar) Material: Steel, strip galvanized according to DIN EN 10346