Coxreels C-MP-430-430 Dual Purpose Spring Rewind Hose Reel for air/water/oil: 1/2" I.D., 30' hose each, 3000 PSI is part of our C Series COXREELS® selection. COXREELS® C Series “Combination” spring driven hose reels are a combination of two hose reels in one compact assembly. They are perfect for applications in which two sources are needed to get the job done when space is a critical factor. The single mounting base creates stability and adds to the convenience of one mounting pattern. This series is also available in air hose/electrical cord combinations.