The flimsy OEM plastic fuel pump strainer (attached to the bottom of the fuel pump) gets clogged as it strains fuel and it can collapse due to negative pressure. It’s fairly small in size so the filtering capacity is limited.
This Guglatech strainer is about 50% larger and does a better job of straining fuel BEFORE it goes into the fuel pump.
An internal structural mesh prevents the strainer from collapsing due to fuel vacuum caused by the pump.
To install, pull off the OEM strainer, and press on the new Guglatech strainer. Easy peasy.