WHAT IS IT?
300-micron 6" x 12" media bags with self-fastening closure. 3-Pack.

COMPOSITION:
300-micron inert polyester mesh.

PURPOSE:
To be used in fresh and saltwater aquarium filtration applications for confining bulk medias. Ideal for phosphate removing media, ion exchange resins, carbon, zeo-sorbents, peat and bio-medias.

BENEFITS:
300-micron mesh keeps media in preventing fines from washing out of the bag. Self-fastening closure is far superior to drawstrings and provides an additional leakproof safety factor. The bags are washable, reusable and completely safe for both fresh and saltwater aquariums. 6" x 12" bag size provides extra versatility, neatly folds over and will fit many of your specific applications.