Fluval U4 Underwater Cartridge DOG TOY just read and follow the

just read and follow the instructions on the packaging

optimal fit due to fully adjustable straps

: 27-33 cm

May be added to aquarium directly

Fluval U4 Underwater Cartridge DOG TOY just read and follow theThe Fluval Poly Carbon Cartridge has two sides that combine to provide thorough and effective chemical filtration, the crucial second stage in the filtration process. The polyester filter pad side filters out fine debris and contaminants. The carbon side filters out harmful liquid substances, colourants and odours. For freshwater, marine or reptile environments. Includes 2 Poly Carbon cartridges. For the Fluval U4 Underwater Filter.