100% brand new 2Pcs Aquarium Filter Sponge For XY-2822/2821 Filter Fish Tank Air Pump Filter Black Color 12*6cm 2PCS Aquarium Filter Sponge for Aquarium Fish Tank Air Pump Skimmer Biochemical Sponge Filter Aquarium Bio Filter Filtro Aquario

Note: Due to the volume of the sponges, we will squeeze it for better transportation. It will come back to its size after you put the sponge into water for a while. Thanks very much for your kindly understanding. Please take care to place the order if you mind. Thank you very much for your great support to our store.Features:Biochemical sponge filter provides biological filtration to the aquarium, helps to stable water quality.Increase the oxygen solubility.Working noiselessly.Good permeability, easy to clean.Perfect filters accessories for your tank and aquarium.  Speicificaitons:Product name: Replace Cotton for Aquarium Sponge FilterColor: Black (Show as picture)/graySponge Size: 60mmx120mm,48mmx80mm, 48mmx60mm, 53mmx53mmx130mm, 65mmx65mmx150mm, 50mmx79mm, 60mmx127mm For smaller aquarium filter, please click here: Aquarium FilterFor single head filter, please click here: Single Head Aquarium FilterReminder:1. Soak the sponge in the aquarium water for 5 minutes before use, by doing this will help nitrifying bateria colonise easier.2. Always use aquarium water under room temperature to rinse clean the sponge, never use hot water. 3. It must be used through connecting the air pump.

Including: 2pcs Filter Sponges