Polaris B1 Pool Sweep Wear Ring

Replacement Wear Ring for the Polaris 180/280/360/380/360 BlackMax/380 BlackMax Pool Cleaners / Sweeps.

I've settled on using TPU plastic since it is flexible enough to allow the ring to be opened and installed. All other plastic types I've tried are too stiff. There might be another flexible filament that is slightly stiffer than TPU that might work fine as well, but none of the various PLA, PETG or ABS that I've tried is flexible enough.

In the photo you can see that I'm conducting a tes