Canon Rubber Refill Plugs
Used to replace plastic ball bearings or rubber plugs, removed from printer cartridges
For use on Canon BCI-3, BCI-6, PGI-5 / 520 / 425 / 450, CLI-8 / 521 / 426 / 451 and HP 178XL / 920XL models
Please note that on some models, like the Canon MG-5140, 5240 & 5340 series, these plugs may rub against the plastic housing on top, causing them to be pulled out. Either cut the tops off, so they sit "flush" with the cartridge, place some tape firmly over them to hold them in place or use an alternate method to refill.
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