The Guardair Corp. Pneumatic Gun Vac with 18” tapered flexible metal extension is designed for industrial cleaning applications and it produces twice the power of standard shop vacuums, according to the company.The flexible metal extension makes cleaning easy in hard-to-reach areas. Powered by compressed air, the lightweight Flexible Gun Vac has no electric motor to burn out. The high-filtration collection bag makes it ideal for cleaning metal chips, dirt, dust and finer materials such as powders and talc. The tapered vacuum inlet accepts all standard 1-1/4" vacuum accessories. The Gun Vac features a contoured comfort grip and a hanging/storage eyelet.