Filter Cartridge - Dynamic Series IV - DFM, DFML, Series II & III RTL/RCF-50, Series I RDC-50, RDC-50S, Waterway, Custom Molded Products, MICROBAN - 03FIL1600, 17-2380, RTL-50, 100533, 6540-471, 25391, 817-5000, R173434 MICROBAN - Pleatco - UPC - 90164000534 Height: 13 5/16 - Diameter: