Covidien Argyle - Suction Catheter Tray with Chimney Valve 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. French Sizes: 10, 14.