fuel pump screen

I am doing maintenance on the fuel system and replacing the strainer which has disintegrated. I bought new strainers from Quantum Fuel systems, but they don't fit. I realized that there is a small plastic adapter that goes in between the pump and the strainer (the old strainer had rusted to it...

Question regarding cleaning out the gas tank and specifically the fuel pump screen on my 2015 RT. Rode Death Valley this weekend and had a good bit of wind and sand. Noticed some sand around the filler neck when at a gas station and Murphy's Law kicked in with an overflow of fuel onto the neck...