Martin Wheel 18X850/950-8 20X800-8 TR13 Inner Tube. This durable butyl rubber inner tube is designed for slow speed tires used in industry and power equipment. It features a TR13 straight valve for easy inflation and deflation.
WARNING: This product can expose you to chemicals including Benzo(b)fluoranthene which is known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov