NITROUS OXIDE SYSTEMS NOS17002. Fitting, Fuel Line Adapter, 3/8 in SAE Female / Male Quick Connects x Three 1/8 in NPT Ports, 4 AN Fittings / 1/8 in NPT Plug Included, Aluminum, Black Anodized, Each. Nitrous Oxide Systems pioneered out-of-the-box, bolt-on nitrous systems. Offering carbureted, EFI, and direct port kits, NOS has kits to fit virtually any application. BILLET FUEL LINE ADAPTER FITS 3/8 TUBE. 0.19 lbs 0.08 kg. 5.5 in 13.97 cm. 2.95 in 7.49 cm. 2.35 in 5.97 cm. Fitting A End 1 Size. Fitting A End 1 Style. Fitting A End 2 Size. Fitting A End 2 Style. Fitting A Quick Disconnect 1 Style. Fitting A Quick Disconnect 1 Size. Fitting A Quick Disconnect 1 O-Ring. Fitting B End 1 Size. Fitting B End 1 Style. Fitting B End 1 O-Ring. Fitting B Quick Disconnect Style. Fitting B Quick Disconnect Size. Fitting C End 1 Size. Fitting C End 1 Style. Fitting C End 2 Size. Fitting C End 2 Style.