Pentair 24700-0068 16-Inch O-Ring Replacement Swimquip Pool and Spa Filter<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>O-ring replacement</li><li>Fits Pentair Swimquip HRS series pool and spa sand filter</li><li>Also fits Pentair Swimquip DES-Series pool and spa filter models DES25-01， DES36-01， DES51-01， DES60-01</li><li>Measures 16-inch tank</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41EB7kKss4L.jpg" noproxy>