For the parallel installation of two pipes or hoses, without wall clearance, with fixed pipe spacing. For the installation of two pipes or hoses, a drill hole with a diameter of 6 mm is sufficient. Drill - insert - done, light grey, halogen-free, PP, UV-stabilised, temperature range: -10 degrees C to +85 degrees C, silicone-free, clamping range 20-25 mm
