The AEM Fuel Pressure Regulator Rebuild Kit includes the Diaphragm, O-Ring and Single Large Orifice. This rebuild kit works for the AEM Fuel Pressure Regulators for Hondas/Acuras (AEM Part#s 25-300, 25-301, 25-303 and 25-304), as well as our Universal Fuel Pressure Regulator (AEM Part# 25-302).
![AEM Black Adjustable Fuel Pressure Regulator -BLACK Anodized [25-300BK]](https://images.buynet.work/thumb.php?i=335856956&s=240)