Product details:

EFI fuel filters with built-in regulator provide a simple and clean means to fueling your LS swap. Available with OEM-style or -6AN connections, they feature an internal regulator set at 58 psi, along with an integrated 5 nominal micron rated filter. The bypass design allows you to run one inlet with one outlet to the engine and an optional? return outlet back to the tank. EFI fuel filter regulators are ideal when performing a LS engine swap or any other fuel injection swap that is designed to run at 58 psi of static pressure.