Coxreels EZ-EN-350 Safety Series Spring Rewind Enclosed Hose Reel for air/water: 3/8" I.D., 50' hose, 300 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.