This blocking style fuel pressure regulator is a precision tool for regulating fuel pressure on carburettor fed engines. The valves feature an advanced aerospace poppet design to give smoother regulating and are fully compatible with petrol, diesel, methanol and ethanol (E85) fuels. A 1/8" NPT filtered breather vent is also included.Perfect for single and multi-stage nitrous applications!Outlet ports - 2 x -8 JICInlet ports - 1 x -8 JICPressure range - 4-12 PsiAll Fuelab products are covered by a 'Forever Fixed' warranty. The warranty covers the original purchaser against all material or workmanship defects. Fuelab products are made to the highest standards and have a warranty that covers them for life.