This vacuum tubing is made of high-quality polyethylene and has an inside diameter of 3/8” and an outside diameter of 1/2″. It comes in a roll of 100 feet in length, with a unit type of ft. The tubing is manufactured by Everlast, a trusted brand in the industry. It is suitable for use in various business and industrial applications. The tubing’s inside diameter is 3/8″, and it is sold in a unit of feet. This vacuum tubing is a great choice for anyone in need of a reliable and durable solution for their business needs.