51502-1 Fuelab_Regulator (This is the regulator used in the OBS fuel systems)

Regulator, BLACK, -6AN Inlet Ports, -6AN Return, Standard Seat, EFI Spring 6AN Inlets / Standard Seat / EFI (25-90 PSID)  Regulator Features Two -6AN inlet ports and one -6AN return port Gasoline, diesel, methanol, and ethanol fuel compatible Billet Aluminum with anodize per military MIL-A-8625, Type II Fine thread pitch for precise pressure adjustment Versatile mounting bracket and stainless steel hardware 1/8” NPT gauge port with plug for external pressure gauge 1/8” NPT pressure reference port with barbed fitting