Air Hose, Hose Tube Material PVC, Hose Cover Material PVC, Max. Working Pressure @ 70 F 300 psi/ CROSS-SECTIONAL SHAPE STYLE: A1 ROUND INSIDE DIAMETER: 0.375 INCHES NOMINAL OUTSIDE DIAMETER: 0.688 INCHES NOMINAL EXTERIOR COLOR: BLUE CONNECTION STYLE: D5 PLAIN END CONNECTION DESIGN: ELBOW CONNECTION TYPE: THREADED EXTERNAL PIPE BURST TEST PRESSURE: 1200.0 POUNDS PER SQUARE INCH LAYER COMPOSITION AND LOCATION: OUTER LAYER PLASTIC, POLYVINYL CHLORIDE MAXIMUM OPERATING PRESSURE: 300.0 POUNDS PER SQUARE INCH OUTER COVERING ENVIRONMENTAL PROTECTION: ABRASION RESISTANT INSIDE SURFACE CONDITION: SMOOTH MEASURING METHOD AND LENGTH: 50.0 FEET NOMINAL OVERALL SPECIAL FEATURES: 1/4MPT CONNECTIONS MEDIA FOR WHICH DESIGNED: AIR