Cascati 4ch-21 Pool Filter Replaces Unicel 4CH-21, Pleatco FC-0121, Filbur PTL18P-4 Filter Cartridge for Swimming Pool and Spa
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<b>[Product Information]</b><br>
<ul>
<li>Pool Filter Replaces Unicel 4CH-21, Pleatco FC-0121, Filbur PTL18P-4 Filter Cartridge for Swimming Pool and Spa</li>
<li>4ch-21</li>
<li>8'' length</li>
<li>1 1/2'' MPT threaded</li>
<li>Diameter 4 5/8''</li>
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