IDEX PPS, Headless, Flangeless Fitting eliminates the need to flange tubing. Flangeless Nuts are dependable, easy to use and easy to replace. Manufactured from resilient PPS it delivers high tensile strength and excellent chemical resistance. IDEX Fitting includes a P-200 ferrule. It has a 1/4-28 Flat-Bottom port configuration, is for 1/6OD Tubing and comes in natural color.