Elite Air Diffuser， 23-Inch</br></br><div style="text-align:left"><b>[Product Information]</b><br><ul><li>Flexible， porous air tubes with large surface area; Provides powerful aeration and water agitation</li><li>Complete with 5 ceramic weights to hold in place</li><li>Ability to be formed into many shapes to produce beautiful bubble displays and air curtains</li><li>Does not consume oxygen vital to fish</li><li>23 inches long; Include cleaning ring that slides along the tube to prevent clogging</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/41Um1Pl4RpL.jpg' noproxy></br><img src='http://ecx.images-amazon.com/images/I/41Ng7cTpWZL.jpg' noproxy></br><img src='http://ecx.images-amazon.com/images/I/31uWwn5IVXL.jpg' noproxy></br>