Brennan N0319-F-04-SS Front Ferrule for Stainless Steel Double Ferrule Tube Fitting, 1/4" Tube OD Front ferrule of a ferrule set for providing a seal when compressed between two mating components Fitting connects to tubing on both ends Stainless steel for strength and resistance to scaling and corrosion For use with Brennan double-ferrule compression fittings For use with back ferrule part number N0319-B-08-SS