6mm natural sheet of hdpe for water tank-HDPE sheets 4×8 . May 24, 2022 · 6mm industrial hdpe plastic sheets for Elevated water tanks We provide different sizes, including 35-gallon tanks, 250-gallon water tanks, 5,000-gallon water tanks, and 10,000 water ntainers. Above ground water storage tanks If you need an upright veal tank for ...