Coiled Air Hose, Polyurethane, 125 psi, 1/4 in, 30 ft, Blue/ CROSS-SECTIONAL SHAPE STYLE: A1 ROUND INSIDE DIAMETER: 0.250 INCHES NOMINAL TEMP RATING: -104.0 DEG FAHRENHEIT AND 158.0 DEG FAHRENHEIT OUTSIDE DIAMETER: 0.38 INCHES NOMINAL EXTERIOR COLOR: BLUE END ITEM IDENTIFICATION: 6625015855782 CONNECTION STYLE: D12 SWIVEL, PLAIN END CONNECTION DESIGN: STRAIGHT CONNECTION TYPE: THREADED EXTERNAL HOSE THREAD QUANTITY PER INCH: 18 MAXIMUM OPERATING PRESSURE: 120.0 POUNDS PER SQUARE INCH NOMINAL THREAD SIZE: 0.250 INCHES MEASURING METHOD AND LENGTH: 25.0 FEET NOMINAL WORKING MEDIA FOR WHICH DESIGNED: AIR THREAD SERIES DESIGNATOR: NPT