EF-S Filter Cartridges Compatible with Top Fin BF5, 8 Pack Aquarium Filters

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🐟【EF-S & BF5 Compatibility】Designed for an EF-S fish tank filter and BF5 BETTAFLO desktop aquarium systems. This 3.7 × 2 inch replacement is Compatible with Top Fin EF-S filter cartridges. Compare the size and shape with your current cartridge before ordering.
🐟【Layered Carbon Filtration】A replacement option Compatible with Top Fin filter cartridges, combining dense filter floss with activated carbon to capture food residue and visible debris while helping reduce unwanted odors and water discoloration.
🐟【Check Filter Model, Not Tank Capacity Alone】For a 5 gallon fish tank filter or fish tank filters 10 gallon setup, compatibility depends on the EF-S cartridge slot rather than aquarium capacity alone. Confirm the filter model and dimensions before purchase.
🐟【Rinse and Install】Turn off the aquarium filter and remove the used cartridge. Rinse the new cartridge under cool running water to remove loose carbon dust, then insert it fully into the filter chamber with the FRONT tab facing the correct direction.
🐟【8 Pack for Routine Maintenance】Includes 8 replacement cartridges for scheduled aquarium care. Inspect regularly and replace about every 2–4 weeks based on fish quantity, feeding frequency, water condition and flow. Replace sooner if flow decreases or odors return.