Quality Construction fittings Equipped with 1/4-inch npt swivel and rigid fitting. This product has 160 working PSI (with a 3:1 safety burst ratio). * HoseKoil extends and retracts to its original compact form giving it ultimate recoil memory. * Extremely lightweight and compact for easy and convenient storage. * HoseKoil will not kink or tangle and storing it is effortless, unlike straight conventional air hose. * Made with virgin-grade polyurethane, it remains flexible in all weather conditions.