Coxreels SLP-550 Single Hose Spring Rewind: 3/4" I.D., 50' hose, 300 PSI is part of our SP Series COXREELS® selection. COXREELS® SP Series “Single Product Delivery” spring driven hose reels are built to handle large hose diameters. Used in applications demanding large volume delivery in low and medium pressures such as fuel and water. The sturdy box-style frame has heavy duty steel cross supports to all four corners for extra strength and rigidity.