Pipe Insulation Foam Tube with Aluminum Foil, Pre Slit Rubber Hose , For Protecting Pipes and Heat Preservation(50mm,110mm). The inner diameter of the insulation pipe is the outer diameter of the pipe to be used. Please measure the diameter of the pipe first and then choose the corresponding size specification. Aluminum foil foam pipe is suitable for outdoor piping, gas piping, indoor and outdoor water piping, air conditioning piping, solar energy piping, etc., home, industry, building. Foam insulation pipe is a foam product with sound-absorbing properties, which can reduce pipe bursting and flow noise. Foam rubber and plastic is an economical material with good insulating properties. It can be cut and applied to many kinds of pipes, straight/bent pipes can be used. Various inner diameters and thicknesses are available to meet your various needs. Foam Tubing Safety: Used for heat pipe or cold pipe to prevent condensation of cold pipe, flame retardant when burned by fire, insulating does not melt, produces low smoke, does not spread flame, and ensures safe use. Farbe:50mm