High Purity PFA Plus tubing constructed with Teflon™ PFA Plus resin offers all the benefits of standard PFA and then some. Manufactured from one of the most contaminant-free polymers available, this tubing offers purity in the parts per billion — perfect for applications in medical, diagnostic, pharmaceutical, biotechnology and semiconductor industries. It also delivers improved resistance to stress cracking and has smoother, clearer walls. It comes in natural color.