We manufacture a broad range of sizes. Overall heights to 40″, anything from 1″ Inside diameters to 34″ outside diameter, can handle air/gas flows to 20,000 CFM. Some provide particle retentions down to 99.9% at 0.1 μ (micron) Intake elements are designed for vacuum pumps, blowers, and compressed air. Available in different filter media depending on the application.`