Charmin Roll Extender Ceramic TP Holder adapter
thingiverse
Charmin website provides free extender for mega and supermega rolls: https://shop.charmin.com/charmin-roll-extender/ However, it does not fit ceramic holder built into your wall that has a smaller spindle hole. This adapter fits tightly into extender (Need to use pliers) and provides a smaller spindle hole. Print at 80% infill for durability.
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