Lee's 90L/100 Original Undergravel Filter， 15-Inch by 60-Inch or 12-Inch by 72-Inch</br></br><div style="text-align:left"><b>[Product Information]</b><br><ul><li>Made of special quality plastic which resists splitting and cracking</li><li>Also has optional flow-thru set-up for use with a power head</li><li>Size: 15-inch by 60-inch by 12-inch by 72-inch</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/51dRSkCN6NL.jpg' noproxy></br><img src='http://ecx.images-amazon.com/images/I/414n0iZl-NL.jpg' noproxy></br>