This banjo hose end assembly makes it easy to plumb your fuel system with 6AN hose. Fits Holley Single Feed 600-660 Series, 4010/4011 Series, and all Holley two-barrel with 9/16-24 thread. This double hose end is ideal for plumbing multiple carburetors. Includes the banjo bolt and sealing washers. Replacement Crush Washers (Part No. 3228-129) are also available separately.