Fluval U4 Filter Media - Poly/Clearmax Cartridge, 2-pack Size_168ltr Here are its key features

Here are its key features and specifications:

The Fluval Replacement Canopy cover in White is suitable for the Fluval FLEX 57L aquarium kit

Size: 10 lb (4

Several mounting options come standard

Fluval U4 Filter Media - Poly/Clearmax Cartridge, 2-pack Size_168ltr Here are its key featuresFluval Poly Clearmax filter cartridge helps control green water and unsightly algae growth by adsorbing and trapping phosphate, nitrite and nitrate. It effectively produces crystal clear water, reduces odors, and creates ideal conditions for fish and plants. The filter cartridge helps reduce overall aquarium maintenance. It is ideal for freshwater and marine environments and designed for Fluvals U4 Underwater Filter. Contains 2 cartridges