4 Felt Bag w/ Plastic Ring
This is the replacement filter bags for Berlin sumps and Hang-On Acrylic Filter Bag mount. This unit fits the ES series filters from Aquarium Life Support Systems.
Filter socks are the most convenient form of mechanical filtration. They remove excess food, detritus, organic waste, dust, and other particulates. Often used in berlin style sumps, the bags are also used in more advanced designs. They remove these particulates from the water column and will reduce the amount of organic matter that produces ammonia and other undesirable substances in the aquarium. Filter socks also help prevent larger objects, such as sand, crabs, snails, etc. from damaging pump motors. Regular filter sock use will lower organic levels and result in cleaner, clearer water.
Inner Diameter: 3-9/16
Outer Diameter: 4-1/4