Coxreels ENM-N-450 Spring Rewind Enclosed Hose Reel for air/water/oil: 1/2" I.D., 50' hose, 2500 PSI is part of our EN Series COXREELS® selection. COXREELS® EN Series “Enclosed” spring driven hose reels are protected by a powder coated steel casing that shields out the elements to protect and extend the life of the reel, the hose and the components inside. It adds a neat, tidy, aesthetic appearance to work environments that demand a clean and professional look. The 3 piece casing is easy to assemble and disassemble for simple installation and maintenance.