One of the best cheap substitutes for filter floss is untreated polyester quilting material. Mainly, it’s sold under a trademark called Poly-Fil. You can also use pillow stuffing but make sure to avoid non-allergenic and fire retardant pillows. Plus, pond-sized filter floss is another alternative to give you the best value for money.
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Save money by purchasing this famous double bonded blue and white filter floss as a value pack Includes three full sheets for an extended supply. An in Tank secret poly material unlike any other on the market. Catches detritus yet allows for the maximum amount of flow. Thicker than other similar poly filters available so you use less. No more doubling or tripling up, use one square in your filter. A very generous amount that last a long time with normal use. Cut to fit for your tank.
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