Aqua Ultraviolet AAV20010 Quartz Lamp Advantage for Aquarium， 15-watt</br></br><div style="text-align:left"><b>[Product Information]</b><br><ul><li>Aqua Ultraviolet Advantage 2000+ 15 Watt Replacement Bulb A20010</li><li>Fresh Water Sterilizer 200-500 Gals</li><li>Fresh Water Clarifier to 2000 gals</li><li>Advantage U's Are Slim， Lightweight Units Designed For Maximum Uva Effectiveness</li><li>U's Will Clear Your Water In 3 To 5 Days Sometimes Overnight And Keep It That Way</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/31L08oTnJSL.jpg' noproxy></br><img src='http://ecx.images-amazon.com/images/I/31Ij5Gr675L.jpg' noproxy></br>