This following retail HDPE pipe price list (price guide) is based on solid black PE100 pipe and includes HDPE pipe sizes: 32mm, 40mm, 50mm, 6m, 75mm, 90mm, 110mm, 125mm, 140mm, 160mm, 180mm, 200mm, 225mm, 250mm, 280mm, 315mm, 355mm, 400mm, 450mm, 500mm, 560mm, 630mm, 710mm and 800mm.