Thick floss material ideal for removing small particles. Plastic ring fits most common sock holders.
Filter socks are used as a effective first stage of an aquariums filtration process and should be placed so that water coming from the tank filters into the filter sock first removing uneaten food, detritus, organic waste, dust and other small particulates from aquarium water. This dramatically improve water quality and reduce maintenance on pumps, reduced sump cleaning and less impact on the biological filtration by removing the excessive waste that would otherwise break down in the system. The routine use and rotation of filter socks will help reduce ammonia and nitrate producing organic waste from accumulatingMicron Rating: 100 Approximate Size: 7.06â€³ x 16.5â€ Type: Plastic Ring Unit #: 21CAP PES100P2P