Model originally uploaded to Thingiverse at https://www.thingiverse.com/thing:2642319.

I have this "KES Vacuum Suction Cup with Swivel Adjustable Shower Head Holder" I bought on Amazon. (#ad) https://is.gd/qvZupi

It doesn't fit my WaterPik showerhead without stressing the original, which finally cracked. I designed this replacement part to fit my shower head. This part might fit similar suction cup-based shower head holders you would find on amazon.

Update 06/19/2018: Adjusted the model origination, ready to print. Update 06/19/2018: Adjusted the model top and bottom to be flat. Update 06/22/2018: Added another model with notches on the threads, easier to print and install.