Betta SE Plus Pool Skimmer Flag Mount

Needed a flag mount for my Betta Se Plus robotic pool skimmer, used a drilled chip clip prior that kept falling off any time the skimmer would bump into a wall so went looking for one to print.  Came across Mayinhosa flag pole holder design which I used to mesh with a clamp for the back tail of the Betta.  Its my first design ever for 3d printing so it is not pretty but it works, slides right on the back and and stays put with the built in lip that catches the rim of the plastic tail piece as shown in the picture.  May work on your Betta model IF that back plastic piece has a inner (underneath depth) of 37mm and the top from edge to edge of 42 mm as measured in the middle of the width as it does curve on the outside edge.  The gap is set at 3mm for a nice tight fit.  Did have to drill out the flag hole a bit to fit my flag so yours may vary.  Printed with 2 walls, 15% infill using the locked zag with PETG.