Where is the fuel filter located on a 1997 Jeep Wrangler?

The filter at the bottom of the pump unit is a strainer, and there are actually two of them in there. The main filter is held on top of the pump unit by a clip and also acts as a fuel pressure regulator. The fuel filter/regulator is reckoned by Jeep to be a lifetime filter. The only reason for changing it is if the anti drainback valve has failed within it, allowing fuel to slowly drain back into the tank causing a long crank problem at cold starts. The filter/regulator is available on eBay for around $50.