200 Micron Filter Sock 4.2 x 8 with drawstring

200 Micron Round Filter Sock – 4.2″ dia. Opening – 8″ Long with drawstring.
200 Micron Round Filter Sock is an effective method of mechanical filtration suitable for both freshwater and saltwater environments. The durable sock helps to trap organic waste, and other particulate matter from the water column, keeping your aquarium environment crystal clear and healthy. The 200-micron sock will help keep fish, sand and snails from entering into your pump motor and causing damage to your equipment.