How many fuel filters on 97' Land Rover Discovery?

How many fuel filters does a 97' Land Rover Discovery I SE V8i 4x4 need? Or how many fit?|||Shouldn't there only be one fuel filter?|||ah do you realy need too go mechanic on this ---i see a problem in the future if you dont know w/ your doing as too filters theres only 2 that are seen as one as the other on dual tanks ? you can play with good luck ..