(4 Pack) Aqua Clear Foam Inserts for 50 Gallon Aquariums (3 Ct. Per Pack / 12 Total Inserts)</br></br><div style="text-align:left"><b>[Product Information]</b><br><ul><li>Convenient 12 Pack.</li><li>Traps particles and debris; Tailored fit prevents bypass</li><li>Designed to fit the AquaClear 50 filter</li><li>Suitable for aquariums between 20 to 50 gallons</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/61lrpd89NAL.jpg' noproxy></br>