Parker PFA Pipe Fitting, Reducer Nipple, 1/4" NPT Male X 1/4" NPT Male, 1.39" Length Reducing nipple pipe fitting for connecting smaller pipe to larger pipe Male National Pipe Taper (NPT) threads on both ends Made from perfluoralkoxy (PFA) for providing a lighter option than metal pipe NPT thread for compatibility with a range of threads More economical than steel