12AN Male Flare Tee T Fitting Adapter with AN12 Female Swivel On Run Aluminum Black Size: 12AN Size: AN12 (1-1/16x12 UNF) male tee fitting with 12AN female swivel on run. Constructed from lightweight 6061-T6 billet aluminum; Anodized coating for enhanced strength, durability, and corrosion resistance. These AN T fittings are designed for a wide variety of automotive applications such as fuel, oil, diesel, or water lines. All fittings and adapters are fully suitable for use with gasoline and alcohol-based fuels