The ST 393 fuel filter is a high-quality alternative, widely used in popular passenger car models. It provides fine fuel filtration, protecting injectors and the injection system from small particles of dirt, rust, and paraffin.

Key Features
Filter Type: Spin-on (available in a metal or high-strength plastic housing, depending on the model) or flow-through cylindrical.

Applicability: Designed for gasoline engines.

Filtration Rating: Effectively retains particles down to 10–15 microns in size.

Pressure: Designed for systems with operating pressures up to 4 bar.