Quad-State Air Compressor Sales & Service covers Western Maryland, Southern Pennsylvania, the Eastern Panhandle of WV, and the Northern Shenandoah Valley* of Virginia.Since starting in 1994, Quad-State Air Compressor Sales & Service (formerly R.L. Bentley, Inc.) has expanded into the four-state region servicing local businesses' compressed air needs.In 2002, Quad-State Air became an authorized distributor for Kaeser rotary screw compressors, as well as Saylor Beall & Curtis piston compressors.Quad-State Air expanded our product line to include other compressor lines such as Champion, Emglo/Jenny, Rol-Air, and Puma in 2004.Through continual training such as the compressed air challenge and Kaeser Kfact programs, Quad-State Air will always offer the best in compressor service and system design.