Item is used- sold as is as pictured. The Welch 2047B-01 Dryfast Diaphragm Vacuum Pump Unit 2 is a high-quality lab equipment designed for medical and industrial applications. This unit, manufactured by Welch, is a reliable and efficient diaphragm vacuum pump that operates at a consistent and precise level. With a focus on performance and durability, this pump unit is ideal for use in various labs and medical settings where vacuum power is essential for a range of operations.