Genuine Armacell AF/ArmaFlex Evo flexible elastomeric foam pipe insulation tube, part number AF-EVO-4-025. Designed for efficient thermal insulation of copper and iron pipes with an outer diameter of 25mm. Features a 19mm insulation thickness, providing excellent energy saving performance with a thermal conductivity of 0.033 W/(m·K) at 0°C. Its closed-cell structure ensures high water vapour diffusion resistance (µ ≥ 10,000) and reliable long-term performance. Classified as Euroclass B-s3, d0 for fire safety, suitable for operating temperatures from -50°C to +110°C. Ideal for heating, plumbing, hot water, solar, refrigeration, and air conditioning systems.