About This

• The information below is per-pack only
• REPLACEMENT CARBON FILTER: Keeps aquarium water crystal clear – removes odors and discoloration.
• CATCHES DEBRIS: Dense, dual-sided mesh filters debris and fish waste.
• CLEAN WATER MADE SIMPLE: Small size fits Tetra Whisper 3i Internal Filters.
• CONVENIENT: Replacement filter cartridges are fully assembled and ready to use.
• USAGE: Change monthly or sooner if there is reduced water flow.