Pentair WC137-517P 21-Inch Collector Hub Assembly for Sta-Rite Cristal-Flo T-BP Series High-Rate Sand Filter<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Collector hub assembly replacement</li><li>Fits Pentair Sta-Rite Waterford pool and spa sand filter system models JSAL210D， JSAL210E， JSAL210F， JSALS210F</li><li>Also fits Pentair Sta-Rite Cristal-Flo high-rate T-BP series sand filter model T-200BP-1</li><li>Measures 22-3/4-inch length by 5-1/2-inch height by 5-1/2-inch width</li></ul></div><img src="http://ecx.images-amazon.com/images/I/312EZqTbTBL.jpg" noproxy>