Allstar fuel pressure regulators install between your fuel pump and carburetor to regulate fuel pressure when using mechanical or electric performance fuel pumps. they feature a two piece aluminum body that has a single 3/8" NPT inlet port on the bottom and two 3/8" NPT side outlet ports. "Dead Head" style regulator does not require a return line back to fuel tank or cell. 1/8" NPT port for mounting a fuel pressure gauge or sender line. Regulator also includes steel mounting bracket.