HEGLERFLEX EL is a lightweight, flame-retardant electrical installation pipe made of PVC-U in the nominal widths DN 16, 20, 25, 32, 40, 50 and 63, in white. This plastic corrugated pipe is used for lighter flush-mounted and cavity wall installations. This lightweight electrical installation pipe must not be laid in concrete. The special corrugation geometry and consistent quality meet all requirements for easy and advanced installation, dh0605, DIN EN 61386-22. Minimum compressive strength: F 320 N/5 cm.