Phosphate removing filter media permanently removes phosphateNon-toxic filter media lasts several monthsWill not leach substances back into your pondA favored chemical filter media because it will not leach substances back into your pond. Largest adsorption capacity of any phosphate filtering media. Ferric oxide hydroxide-based granules also adsorb organics and other pollutants. Use just like activated carbon; filter bag included. Non-toxic and lasts several months in typical ponds.150 gram jar is 0.33 lb, includes a filter bag, and treats 150 gallons. 1,200 gram bulk size includes filter bag and treats up to 1,200 gallons.Please click on "More Information" for usage instructions.

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