Key features

• •Compatibility: Perfect filters replacement for Tetra Whisper Small Fish Tanks Filter, suitable for Aquarium Kits 3-10 Gallons Fish Tanks and for small tanks and filters; fits many brands HOB filters. Please double check that your machine is suitable before placing an order!
• •Upgraded Formula: Dual-sided poly-fiber cotton can effectively removes fish waste and other debris quickly; The natural coconut shell activated carbon in the inner layer can effectively adsorb odors, increase water transparency and improve water quality
• •Premium Material: Contains high quality natural coconut shell activated carbon with twice the adsorption capacity of ordinary activated carbon. Can help keep aquarium water clear and ensure fish health
• •Ready To Use: No assembly required, very simple to use and replace, just place the product in the designated position, Easy grip tab keeps hands from getting wet
• •Long Lasting Supply: Contains 10 Pack S Replacement Filter Cartridges, each can be used for 3-4 weeks, total can be used about 8 months. For optimum use, please adjusted appropriately to your feeding habits