TETRA WHISPER EX CARBON FILTER CARTRIDGE Supplies Two part system maintains calcium

Two part system maintains calcium and alkalinity levels

Smooth non-porous surface that will not harbor bacteria

string and hair algae

The Marineland® brand designs the filter cartridges to meet the absolute highest standards of water purification

Your dog’s food requirement may vary from the feeding guidelines due to age

TETRA WHISPER EX CARBON FILTER CARTRIDGE Supplies Two part system maintains calciumUnique cartridge design: round modern design, continuous flush performance, improved biological filtration. Improved flow rates and multi density floss. Timestrip cartridge change indicators included. 4 cartridges per pack, fits whisper ex30, ex45, ex70