Keep your Fluval C Series multi-stage filter at peak performance with regular media replacement. Effective mechanical filtration is essential for efficient chemical and biological filtration. Highly-porous Foam Pad with large surface area mechanically filters large particles and debris from the aquarium. Dual density Poly/Foam Pad combines two stages of mechanical filtration. Stage 1 captures large particles within the porous foam. Stage 2 traps fine debris within the dense polyester layer. Sizes fit Fluval C2, C3, or C4 power filters.
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