The new DeatschWerks fuel pressure regulators provide the quality, precision and reliability your fuel system deserves. They come with dual -6AN inlets, a -6AN return and are stainless steel and anodized for e85 compatibility. A ball-bearing mechanism allows for smooth and accurate base pressure adjustment. The large 45 mm fiber-reinforced Viton diaphragm is ethanol compatible and provides a large surface area for increased response and precision. Regulators come with a multi-positional mounting bracket to maximize installation options, and a 1/8 NPT gauge is available as well.