Coxreels TSH-N-450-HV Supreme Duty Spring Rewind Hose Reel for air/water: 1/2" I.D., 50' hose capacity, with high visibility safety hybrid hose, 300 PSI is part of our HV "High Visibility" Safety Hose Series COXREELS® selection. COXREELS® HV "High Visibility" Safety Hose Series powers up the safety of your reel. The HV Hose will add awareness and visibility to your hose creating thesafest environ­ment possible. To maximize your safety to the highest level, add EZ-Coil controlled retraction to your Coxreels. .