Houston PolyTank’s water, chemical (acid, alkali), and high-temperature application poly tanks have a capacity of 100 to 50,000 gallons. The large-volume poly tanks are made by extruding polypropylene or polyethylene around a steel drum mold and are manufactured in various thicknesses, according to the client’s requirements and the type of substance to be stored. The tanks are structurally strong, dimensionally stable, and non-bulging for side manways. The polyethylene tanks are NSF 61-certified. The polypropylene tanks can hold material at temperatures up to 200 F. The tanks are environmentally friendly, recyclable, and easy to mobilize. The can be equipped with manway, catwalks, ladder, cages, level control gauges, and venting.