Product Overview Holley 12-879 Fuel Pressure Regulator - HP Billet - 4 to 65 psi - In-Line - 3/8 in NPT Inlet - 3/8 in NPT Outlet - 3/8 in NPT Return - 1/8 in NPT Port - Bypass - Aluminum - Black / Clear Anodize - Diesel / E85 / Gas - Each
