OVERVIEW: The TC3 Ultra-Flexible Convoluted PTFE Hose for Heavy Duty Applications is made with the thickest seamless PTFE liner in the industry and offers the largest size range which makes it ideal for nearly all demanding high purity and chemical applications. It is available in conductive or nonconductive tubes, and stainless steel or polypropylene covers. 1/2" to 6" diameters. -65F to 450F.