Fluval 406 and 407 Bio-Foam Max - 2 pack

This advanced foam design helps maintain steady, even water flow through the filter, reducing the risk of premature clogging and extending the lifespan of additional filter media. The porous structure also provides an ideal environment for beneficial nitrifying bacteria to colonize, supporting stable biological filtration.

Each pad is precision-cut for a secure, gap-free fit, ensuring maximum contact with water passing through the filter chamber for improved efficiency.

Key features:

• Dual-purpose biological and mechanical filtration media
• Rippled foam surface increases filtration area by up to 30%
• Helps prevent early clogging and extends overall media life
• Promotes even, consistent water flow through the filter
• High-surface-area structure supports beneficial bacterial growth
• Custom fit design eliminates bypass gaps
• Convenient 2-pack format
• Replace approximately every 6 months
• Suitable for both freshwater and saltwater aquariums