Coxreels E-LP-450 Spring Rewind Enclosed Cabinet Hose Reel for air/water: 1/2" I.D., 50' hose, 300 PSI is part of our E Series COXREELS® selection. COXREELS® E Series “Expandable” multiple bank system is the pinnacle in professional appearance and organization. The cabinets are interlocking and expandable to any number of spring driven reel assemblies required. Designed for easy installation, maintenance and servicing the E Series system is truly the professional’s choice for multimedia delivery in one custom package.