Spring stainless steel membrane made in Germany, all sealing rings made of expensive FPM/FKM: Other sealing sets often contain sealing rings made of NBR or even silicone. These become leaky after a short time due to the high aromatic content in modern premium fuels. In addition to the stainless steel membrane and Allen sealing rings and copper sealing rings, there are also followingnd parts included: Copper sealing rings (Made in Germany) for mounting the injection lines and fuel fitting , adjusting washers for the various system pressure regulator types, housing screws, mounting screws for mounting on the air flow meter, a dismantling screw for removing the plug-in gasoline filters in the injection ports, three dismantling screws for opening the housing halves and citric acid granules for.
