BRS Felt Filter Sock with Plastic Ring 7” x 16”

Filter socks come in mesh or felt and with a plastic ring or draw string. See below for differences and unique advantages.Mesh: Thin, doesn’t clog as easily as feltFelt: Thicker, better at removing particles, but can clog fasterPlastic Ring: attaches via ring that fits common sump holdersDraw String: attaches directly to plumbingBRS recommends starting with felt socks and switching to mesh if they clog faster than desired.Filter sock benefits:Regular use will result in crystal clear water most convenient form of mechanical filtration.Remove excess food, detritus, organic waste, dust and other particulatesConvenient form of mechanical filtrationPrevents larger objects like sand, crabs and snails from damaging pump motorsReduces ammonia and nitrate producing organic wasteIncreases filter life