Fuelab digital fuel pumps, fuel pressure regulators and accessories - for the best fuel supply fuel pressure regulator -6AN 535 Fuel pressure regulator with the highest precision FueLab - Fuel supply at the highest level Intake: -6AN - 1,7 -? 6bar Inlets: 2 - -6AN Return - extremely small The FueLab fuel pressure regulator series 535 and 545 have the same features as the 515/525 series. They are also much smaller and weigh a mere 50 %. They support carburetor and fuel injection engines in the pressure ranges from 0.7 to 8,5bar. In the 535-series the return is located on the underside of the controller. In the 545-series is this in line with the inlet and is therefore very well suited for confined spaces.