1996 Pontiac Sunfire 164,000 mi.

How do I remove the fuel filter? This filter has a "quick release" coupler on the input side from the tank but it does not look like the plastic fitting shown in the manual and also is not exactly like the metal fitting shown in the manual. It somewhat like the metal connector except that it has a plastic collar with four segments surrounding the metal bell part, but nothing to push in to release any tabs, etc. There is not enough room between the filter and the coupler to get in a cylindrical tool to release any internal tabs. Any suggestions would be appreciated.