Sierra's 18-7722 Filter Fuel is designed for use in Johnson and Evinrude outboard applications. It is interchangeable with EMP 35-35209 and Johnson/Evinrude 5005266, 5007326, 50073355. Barb Size: 3/8" (9.5 mm). Micron Rating: 27. Each Sierra product meets or exceeds the original equipment part it replaces.