Re: 97 E350 Van, no WTS light, blowing 30 amp fuses on ignition, suspecting fuel bowl heater...
From your pictures it should be the one with the spade clip with the arrow pointing to it.
Other than that you can pull your filter and disconnect it on the inside of the bowl. That is unless it is the thermister that passes through the filter housing.
96 F250 XLT 4x4, 4:10 gears, 5 speed, Tymar intake and HX hose, downpipe, pyro and boost guages, coolant filter, Luc clutch