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https://3dprintingzoom.com/product/fysetc-3d-printer-filament-cleaner-block-rubber-foam-filters-for-diameter-1-75-3-0mm-abs-pla-wood-other-3d-printing-filaments/
FYSETC 3D Printer Filament Cleaner Block Rubber Foam Filters for Diameter 1.75 3.0mm ABS, PLA, Wood, Other 3D Printing Filaments