The PENTEK-CBU-10 carbon block filter cartridge surrounds the quartz tube and acts as a prefilter to maximize transmittance of UV light through the water and reduces cysts. The CBU-10 is an ideal prefilter for use with the UVS-110 and UV-110 ultraviolet systems.
-34%
CBU-10 Pentek Whole House Filter Replacement Cartridge
$8.36 Save:$4.00(34%)
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