this is a fuel filter bracket for the Duralast Fuel Filter FF609DL any filter that's about that size should fit, but this was made originally for this filter, so it fits perfectly for that. the story (if you want to hear) is because of my current El Camino project, and doing an LS swap. we found something similar to this for... 20$ off of ebay, but that was way to much, so after 20$ worth of testing and printing, this is ready for use. i wanted to give this out to the people because i couldnt ever find it, so here you go guys :] this is the inspo: https://www.ebay.com/itm/225374028220