When the job calls for the transfer aqueous or corrosive aqueous systems, or even alcohols, ozone, and other flowing matter that requires stable transfer system properties under wide temperature extremes, be sure to use santoprene tubing. Santoprene is a high-performance elastomer that, as tubing, provides the right flow consistency for peristaltic pump applications. This thermoplastic elastomer tubing (AKA TPE tubing) performs well under vacuum conditions, as well. Manufactured by E. James, these 50 foot lengths vary by outside diameter, inside diameter, wall thickness, and maximum pressure. Use tube cutters to cut to the length you need.