ENPRESS™ manufactures the world's finest composite pressure vessels and water treatment equipment, 100% Made in the USA. We u ... tilize an industry exclusive copolymer polypropylene formulation for the liner assembly that is far superior to traditional polyethylene. That means ENPRESS™ vessels provide superior performance in harsh climate extremes and have far better chemical and impact resistance. But you get more than a great vessel from us. You get a great team with over 75 years combined engineering, manufacturing and marketing experience in the field. ENPRESS™ - Where Innovation Flows.™ ENPRESS LLC is a worldwide leading manufacturer of composite pressure vessels for use in water treatment. ENPRESS tanks are manufactured with an industry exclusive liner design and formulation that offer superior benefits and features…100% Made in the USA. More information is available on the company’s website at www.enpress.com or by calling l-866-859-9274. read more