Pentair 59000500 Grid Locator Spider Replacement FNS Plus Pool and Spa D.E. Filter<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Grid locator spider replacement</li><li>Fits Pentair FNS Plus pool and spa D.E. filters</li><li>Measures 23-inch length by 23-1/2-inch height by 18-1/2-inch width</li></ul></div><img src="http://ecx.images-amazon.com/images/I/31Yh8cGfuUL.jpg" noproxy>