MrPEX, known for its Barrier Pipe for radiant and snowmelt systems, offers a complete PEXa plumbing system with the same great product, offering advantages as compared to conventional copper pipe systems, the company explains. The tubing is offered in red, white and blue, and in coils or sticks, with complete accessories and tools. The company also offers lead-free brass F1807 and PPSU F2159 fittings using a stainless steel PEX press sleeve that also are approved with the use of F1960 fittings.