Brand new Genuine Malpassi Filter King combination fuel filter and regulator. This unit allows you to adjust the fuel pressure down to between 1 and 5 PSI and is perfect for a Weber Carburetors including the DCOE Series and the DGV series or for use on cars using SU or Stromberg carburetors that original called for 2.5 to 3.5 PSI fuel pressure. These have a large 85 mm body which is around 3.45 and is suitable for large volume use with minimum disruption to fuel volume. Perfect for race use with uprated aftermarket fuel pumps The filter is changeable. These are premium quality units and made in Italy. These come with inlets and outlets that can be used with 5/16 AKA 8mm fuel hose. Please note the included gauge is intended to be used to set and or check the pressure and is not designed to be used except when adjusting the regulator. These come with a plug to go in the fitting hole that is used for the gauge once adjusted. Please note the gauge that is included with the kit may differ from time to time from the exact one in the picture but it will be a similar 0-15 PSI gauge and will fit the regulator.