Large Hang on Back Aquarium Filter 344GPH for 40-150 Gallon Fish Tank, U-V Light Big Canister w/ Filters High Flow 5-Stage Green Killing Deodorization Machine Keep Fresh& Saltwater Water Crystal Clear

This package includes a main filter unit, UV light, and reusable filter media for aquariums. It helps keep water clear and reduces odors.

• The description claims activated carbon traps pollutants and reduces odors and water discoloration.
• The description claims the UV light clears green or yellow-green, odorous water.
• The description claims the filter can be used for both freshwater and saltwater tanks.