Faser ISO FIBER-COND PIPE Pre-Insulated PP-RCT pipe SDR11, multilayer pipe with special fibers in the middle layer, inner layer white color, outer layer white color with red strips up to Ø 125-225 mm, white color with red strips from Ø 160-250 mm, pre-insulated with PUR stiff foam, protected by a PE-HD coating black color.