New filter for Datsun 280Z and 280ZX between the tank and the pump. This filter keeps large debris from the tank out of the pump. If you have a new or spotless tank then this filter probably is not needed. This filter has 1/2" fittings and we recommend using it with our 800-789 7/16" rubber fuel hose or PT# 800-311X braided cloth hose. Both of these fuel hoses fit the filter and will connect to the fuel tank bung.