Interstate Pneumatics HA04-050 1/4 Inch 50 ft Red PVC Hose - IP Brand Hose Inner Diameter: 1/4 inch | Fittings: 1/4 inch NPT Brass Male Fitting Length: 50 feet Color: Red Working Pressure: 300 PSI at 75 F Safety Factor: 4:1 (1200 PSI burst)