Working on a custom fuel system or need to add a pressure gauge? These VehiMata fittings are exactly what you need. This is a 2-pack of AN6 (size 6) male flare to female AN6 swivel fittings. The cool part is they have a 1/8-inch NPT port on the side, which is perfect for installing a fuel pressure gauge or sensor directly into your fuel line. They're made from strong 6061-T6 aluminum with a durable black anodized finish. The AN side seals with a 37-degree flare, and the NPT side uses tapered threads (use sealant or PTFE tape here for a perfect seal). They're rated for high pressure – up to 1500 PSI and temperatures from -40°F to 250°F. Installation is straightforward, but using an AN wrench (like VehiMata's own) makes it much easier. Upgrade your fuel system with these quality, functional adapters.