Fluval Stage 3 Biomax Replacement, For U2, U3 & U4 Underwater Filters

★★★★★ 4.8 97 reviews

US$3.72
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US$3.72
Price when purchased online
Free shipping Free 30-day returns

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Management number 244421007 Release Date 2026/07/20 List Price US$3.72 Model Number 244421007
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Fluval BioMax Replacement Media for U2, U3, and U4 Series Underwater Filters provides an optimal environment for biological filtration. Each ring has a complex pore system that allows beneficial bacteria to thrive, helping to reduce and control ammonia and nitrate.

  • Provides optimum biological balance
  • Complex pore system supports colonization and growth of beneficial bacteria
  • Reduces and controls ammonia and nitrate
  • Replacement bio-media for Fluval U2, U3 and U4 Underwater Filters

Directions: Rinse before using. Safe for freshwater, marine, or reptile habitats.

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4.8 out of 5
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97 ratings | 40 reviews
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