Sundance Spas Microclean Ultra Inner Filter Cartridge， 6473-164<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Sundance Spas Microclean Inner Filter - 6473-164</li><li>Inner Filter is used on Sundance Spas 880 Series Spas</li><li>Inner Filter used with 6473-165 Outer Filter</li><li>Original Sundance Spa Parts and Filters</li><li>Height: 18.74" Diameter: 5.63"</li></ul></div><img src="http://ecx.images-amazon.com/images/I/21bsNETkdNL.jpg" noproxy>