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Give it purpose - fill it with water filters, air filters, refrigerator filters, and more.
The Omnipure Q5621 Q-Series Replacement Cartridge is a 10 micron carbon block filter that can be used as an upgrade in the PuROTwist System and also fits Omnipure Twist Tap filter heads QNVH B, C, or J, with or without automatic shutoff.
The Q5621 offers chlorine taste & odor reduction and sediment reduction without the release of "carbon fines" like Granular Activated Carbon filters. All with just a twist of the wrist!