Little Giant 566113 Mechanical and Biological Filter Replacement Pad， 400 Gallons<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Mechanical and biological filter replacement pad</li><li>For Model SBF-1-PW</li><li>Replacement pad for 400 gallon mechanical and biological filter 566153</li><li>Includes one coarse and one fine filter</li><li>This product comes in 400 gallons</li></ul></div><img src="http://ecx.images-amazon.com/images/I/31OY1MnaBsL.jpg" noproxy>