IDEX all-PEEK One Piece Super Flangeless Fitting is excellent for those connections that need to be broken frequently and tubing assemblies because they swage onto the tubing. Manufactured from biocompatible PEEK, it offers superior chemical resistance. It has an 1/4-28 Flat-Bottom port configuration and is for 1/16OD Tubing. Designed for use with Fluoropolymer tubing only.