For vehicles with the filter adjacent to the fuel tank at the rear:
Remove the 12mm fuel connector and promptly insert blanking plug.
This is the fuel filter to HP pump line.
Remove the 10mm connector and promptly insert blanking plug.
This is the line fronm the fuel tank to the filter.
Drain 500ml fuel from the filter housing.
Remove the filter and replace.
Re-connect the 10mm connector from the tank to the filter.
Use a hand operated vacuum tester
to draw fuel from the outlet spigot on the filter housing
until it is primed.
Suitable plugs could be made using these:
https://www.ebay.com.au/itm/4-6mm-8m...-/222149564454
Sizes are 10mm for tank to filter and 12mm for filter to HP pump.
Note there is no lift pump in the tank.