RUBBER MASTER 11.2/12.4-16 11.2/12.4x16 13.6-16 Bias Farm Tractor/Implement Inner Tube with TR218A Valve Stem 11.2/12.4-16 13.6-16 Bias Tractor/Implement Inner Tube with TR218A Valve Stem TR218A Valve 11.2/12.4-16 13.6-16