Tetra Easy Crystal Filter Pack C600

Tetra Easy Crystal Filter Pack C 600 with carbon is a replacement filter cartridge suitable for the Tetra Easy Crystal Filter Box 600 (also sold in Tetra Starter Line 80 and Tetra Starter Line 105 aquariums). For crystal clear healthy water replace every 4 weeks. Contains 3 filter cartridges.,Tetra Easy Crystal Filter Pack C 600 with carbon is a replacement filter cartridge suitable for th