Cable retaining clip, for the additional requirement to achieve a tighter fit of the cover, the cable retaining clips must be inserted at intervals of 0.6 m - 0.7 m in the duct base.certified! Use for: Device duct bases GKU ... DKU ... PGU ... PLU ... GAU ... DAU ... for cover opening: 78 mm Material: stainless steel, 1.4310