Non-return fuel pressure regulators provide serious bang for your buck.Cast from lightweight Aluminum.Universal application1-4 PSI non-return style.High Pressure Black Painted Aluminium 1-4 Psi 3/8" Npt Ports, with mounting bracket.The internal spring and diaphragm are composed of high-quality materials to guarantee consistent and reliable performance. They are available in multiple finishes.SpecificationsPRESSURE RANGE 1 - 4 PSIREGULATOR STYLE Non-ReturnREGULATOR LOCATION InlineBOOST/VACUUM PORT NoGAUGE PORT YesREBUILDABLE YesINLET ATTACHMENT FemaleINLET SIZE 3/8" NPTOUTLET ATTACHMENT FemaleOUTLET SIZE 3/8" NPTREGULATOR MATERIAL Cast AluminumMOUNTING BRACKET IncludedFITTINGS Not Included