Super Activated Carbon For Freshwater， Marine & Reef Aquariums， Fish， Corals， Plants & Invertebrates. 12 Ounce Box - Three 4 Ounce bags. Use In Aquarium Filters， Terrarium Filters， Hydroponic Systems</br></br><div style="text-align:left"><b>[Product Information]</b><br><ul><li>Includes 3 carbon bags measuring 4 oz. each</li><li>Dismantles impurities and odors in tank water</li><li>Helps keep aquarium water looking clean and crisp</li><li>Includes only high quality super activated carbon</li><li>An economical and reliable staple chemical media</li></ul></div></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br><img src='http://ecx.images-amazon.com/images/I/51KQQOE3uvL.jpg' noproxy></br>