Wirsbo Company is Americas leader in the manufacture and sale of Engel Method cross-linked polyethylene (PEX) tubing and components used in radiant floor heating, plumbing, and snow-melt systems. Founded in 1620 in Virsbo, Sweden, Wirsbo Company got its start forging high-quality steel using the natural resources that abounded in 17th century Sweden. Wirsbos 1984 incorporation in the United States sent it on its way to becoming a world leader in the manufacture and sale of Engel Method cross-linked polyethylene (PEX) tubing used in radiant floor heating, snow-melt, and plumbing systems. Acquired by the Uponor Group in 1988, Wirsbo is part of an esteemed group of companies considered to be the most innovative plastic pipe manufacturers in the world. With more than 2 billion feet in service, Wirsbo PEX tubing provides efficiency, durability and a proven long life.