About this item

• 200um micro filter sock is a top choice for professional user, it is helpful to keep the water clear in the tank.
• This aquarium filter sock is suitable for saltwater and freshwater filtering system.
• Made of fabric fiber felt, fit for catching uneaten food, fish droppings, rotten plant, dust and some other floating particles.
• In addition, they can resorb and remove excess nutrients, Thereby improving water quality.
• Ring size: 4 Inch Diameter, Sock Length: 7 Inch long.