Male an 6 to an 6 (9/16-18) female swivel with a 1/8 inch npt female thread gage port fuel line tube pipe connector Black anodized 37 degree sealing angle guarantees a positive seal at maximum operating pressures Universal fit. such as: Oil/ Fuel/ Gas/ Gad/ Water/ Fluid/ Air Line with AN-6 Ends Made of high perforamanceLightweight 6061-T6 billet aluminium material Hex head fuel pressure sensor / gauge male an flare to female an thread swivel seal with side port equal pipe tube connector Aluminium Anodized AN6 Male to Female -6 AN with 1/8" NPT Gauge / Gage Port Adaptor Fitting. Sniper adapters are precision machined to assure a proper fit to Sniper hose ends. And, being hand polished and bright dip anodized means they look good while doing it.