Fits Carbs With 5 1/8" Opening (Holley, Edelbrock, Rochester, Demon, Carter, etc.) This Air Filter Spacer is easy to install, no modification is required. save time and effort. convenient for using. You can replace the old or broken one directly. Package incldues: 1 x 2" plastic air cleaner spacer.True seal design fits perfectly with O-ring seals. This air filter gasket is made of high quality aluminum materials, it is corrosion resistant, scratch resistant and has a long service life. ensuring it has stable characteristics and high reliability. Please check the part number / model / make / year carefully before purchasing to insure fitment. YUCHENSHLP specializes in providing high-performance repair and replacement parts for various automobiles, we support 365 DAYS returns and exchanges. If you have any questions, please feel free to contact us, we will solve it for you as soon as possible, customer satisfaction is our unremitting pursuit.