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These are replacement filter cartridges for Top Fin Silenstream PF-L and PF20–PF75 power filters. Each cartridge packs three media in one pad: cotton for particles, activated carbon for odors and discoloration, and zeolite for ammonia. That combination covers mechanical, chemical and ammonia control in a single drop-in part, which is more than plain floss cartridges offer. They suit keepers of goldfish, cichlids and other heavy-waste fish who want simple, frequent cartridge swaps rather than a reusable media setup.
In stockSold by WYDAQReturns: Sold by a Walmart Marketplace seller; returns go to the seller under the seller's returns policy.
Buyers rate these cartridges well, mainly for fitting the Silenstream filters correctly and clearing water quickly. The common complaint is that the pads clog and need changing sooner than the stated interval on messy tanks.
These replacement filter cartridges are made for Top Fin Silenstream PF-L, PF20, PF30, PF40 and PF75 aquarium filters. Each pack contains 8 cartridges.
The cartridges use a four-stage filtration system with cotton, activated carbon and zeolite. They remove impurities, absorb ammonia and help balance pH.
The cartridges are quick and easy to install. Replace them every 2 to 4 weeks to maintain water quality.