Pentair 190092 Internal Air Bleed Assembly Replacement FNS Plus Pool and Spa Vertical Grid D.E. Filter<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Internal air bleed assembly replacement</li><li>Fits Pentair FNS Plus pool and spa D.E. vertical grid filter</li><li>Measures 9-1/2-inch length by 2-1/2-inch height by 1-inch width</li></ul></div><img src="http://ecx.images-amazon.com/images/I/21sXojO%2Bc3L.jpg" noproxy>