Aeroquip fittings are an excellent choice for high quality performance plumbing projects. This banjo fitting has been designed to work with Holley single feed 600-660 series carburetors and all two barrel series with 9/16 -24 thread. It is manufactured from aluminum, giving it the necessary strength without unnecessary weight, and has a red and blue anodized finish for corrosion resistance and an eye-appealing look. Be sure to use a new crushwasher (available separately) when installing. Please note: Eaton Aeroquip fitting tolerances are engineered to match Eaton Aeroquip hose tolerances. The use of Aeroquip fittings on hose supplied by other manufacturers and/or the use of Eaton Aeroquip hose with fittings supplied by other manufacturers may result in the production of unreliable and unsafe hose assemblies and is neither recommended or authorized by Eaton.