Allstar Performance AN to NPT adapter fittings are available in a variety of sizes, angles, and configurations—male and female. These aluminum fittings feature a black anodized finish for superior corrosion resistance and good looks. Available in union and reducer styles, these adapters enable the end user to join two lines, pipes, or hoses of the same and/or different diameters. Sold as a pack of 50 fittings.