Covidien Argyle - Suction Catheter Mini-Soft Kit (Chimney Valve - No Solution) is used for respiratory therapy. When attached to a suction machine, the suction catheter helps to clear secretions from the airway. Kendall's suction catheter comes with a pair of nitrile gloves and chimney valve. Latex-free. Sterile. Formerly Kendall. Tip: Whistle. French Size: 14.