Pentair 355147 Impeller Assembly Replacement High Pressure Inground Pump<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Impeller assembly replacement</li><li>Fits Pentair Challenger high pressure inground pump models CHI-NI-1/2F， CHII-NI-3/4A</li><li>Measures 3-1/8-inch length by 1/4-inch height by 3-1/8-inch width</li></ul></div><img src="http://ecx.images-amazon.com/images/I/31c9ZufMlSL.jpg" noproxy>