When I replaced my front tank, I eliminated the shower head.
The originals lasted a long time, but they still eventually broke off, and crumbled. I don't trust the new ones as far as I can spit.
I just put a piece of vinyl tubing on the end of the pickup tube, and put a brass tee, in the end of that. (Used fuel injection hose clamps to keep everything in place.)
Then looked through the filler neck hole, while I installed the sender, to make sure that the tee was laying down flat on the bottom of the tank.