For laying pipes and hoses, without wall clearance on plaster, e.g. on suspended ceilings and on sub-concrete, for laying two pipes a drill hole with a diameter of 6 mm is sufficient, clamping range pipe/hose 16-20 mm, light grey, halogen-free, PP, UV-stabilised, temperature range: -10 degrees C to +85 degrees C, silicone-free
