Bosch 68021 Fuel Pump Strainer Superior micron rating comparable to OE ensuring maximum protection against fuel system contamination Multilayered filter media with 99% efficiency Recommended repair accessories designed to OEM standards to improve the function of the vehicle and uphold product warranty Robust aluminum-, plastic-, or surface-treated steel filter housing designed to withstand high pressure thus offering a longer fuel filter service life Always recommend replacing fuel strainer when replacing a fuel pump to ensure long and reliable service life