K&N Engineering IN-LINE FUEL Filter K&N Fabrication>Distribution Blocks The internal diameter is a

The internal diameter is a full 5/8

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K&N Engineering IN-LINE FUEL Filter K&N Fabrication>Distribution Blocks The internal diameter is aThe K&N 81 0240 In Line Gas Filter is perfect for racing applications and can be used with a variety of oils and fuels including methanol. The 81 0240 stainless mesh in line fuel filter has a flange diameter of 5 16 inches. It comes with a 1 17 32 inch body diameter by 1 3 4 inch overall length. The package contains 12 fuel filters.