The Salter Labs Original Cannula with 4 ft Supply Tube Clear, Three Channel Safety, Lightweight, Anatomically Designed, One Piece, Seamless that is Comfortable to Wear. This is the original Salter-Style model with all of the features. It matches comfort with everyday performance up to 6 LPM and a multitude of three channel crush resistant or smooth bore tubing lengths. Special lengths available with minimum one case order. The clear, lightweight adult cannula is made with the Salter-Style� manufacturing process producing a soft, anatomically designed, one piece, seamless cannula that is comfortable to wear.Anatomically curved to fit upper lip.Curved, tapered nasal prongs.Over-the-ear style headset.Three-channel safety tubing.Soft, lightweight, clear material.Secure positioning.Uninterrupted flow of oxygen.1 Count