MatriKX PB1 0.5 Micron Lead Removal Carbon Block 10" - CF-LR-0.5-10 – SpectraPure, Inc.
KX Matrikx 32-425-125-20 Water Filter Cartridge
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Amazon.com: Matrikx 10 inch CTO Carbon Block Filter now with Chloramine Reduction, 2.5 inch x 10 inch, 32-250-10-MATRIKX, Gray : Tools & Home Improvement