Black Ops Replacement Pre-Filter 4 in x 12 in White (10/Cs)
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<b>[Product Information]</b><br>
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<li>Use these for a pre-filter on you Black Ops  Carbon Filters</li>
<li>Match the pre-filter to your Black Ops  Carbon Filter size</li>
<li>Helps to extend the life of your Black Ops  Carbon Filter by keeping dust and other particles out</li>
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