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, pipe/hose clamping range 20-25 mm, light grey, halogen-free, PP, UV-stabilised, temperature range: -10 degrees C to +85 degrees C, silicone-free
