Thermo Fisher Scientific Nalgene Rectangular Tank. Nalgene Heavy Duty Rectangular LLDPE (linear low-density polyethylene) Tank with LLDPE cover is very versatile at a much lower cost than stainless steel tanks. LLDPE resists most acid, alcohols and bases and is impact and abrasion resistant. Can be modified with factory installed spigot. Molded as one piece, no seams. Good chemical resistance. Nominal wall thickness is 3.97mm. Stepped flange at top provides reinforcement and grip for lifting. Material HDPE. Volume 23l. Graduated Yes. Length 360mm. Width 250mm. Height 250mm. Sterile No. Autoclavable No. Pack Qty 1.