The VG-020-00-00 is compact in size and very easy to install. They have a lightweight construction and operate on shop air, making them economical to use. Constructed with no moving parts, these Gast vacuum generators require minimal maintenance and operate very quietly. In addition, their innovative Gast multi-venturi design uses less compressed air, yet delivers substantially more vacuum flow than single-venturi units making them the ideal choice for applications where a regular pump may not be preferred.