This is a new radial Air-Loc 13.6R28, 14.9R28 multi-fitment agricultural farm tire inner tube. It is approved for radial and bias tire use. It is a multi-fit tube that is made to be used in the following sizes: 13.6R28, 14.9R28, 420/70R28, 340/85R28, 380/70R28, 380/85R28, 14.9R30, and 380/85R30. The most common applications are for agricultural farm tires. This tube has a TR218 bent metal valve stem.