Tetra Small 3I Filter Cartridges 6 Pack

Tetra Small 3I Filter Cartridges
Clear Water Made Simple

Ultra-Activated carbon absorbs odors and discoloration.

Dense, dual-sided mesh catches debris and fish waste.

INSTRUCTIONS:

1. Rinse the filter cartridge under cool tap water to remove carbon dust.

2. Open the lid and insert the filter cartridge into the filter.

3. Replace clogged filter cartridge when there is reduced water flow out of the filter.

For best results, change the filter cartridge monthly. After 30 days the carbon begins to lose effectiveness.