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Ships within 48 hours · Estimated delivery Aug 21 - Aug 26
The 1/3 cubic foot size suits typical 10-inch diameter tanks or can be combined with other media in larger vessels for multi-stage treatment protocols
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Verify your existing housing accepts standard 20-inch cartridges before ordering
💧 The EP-20BB's high-porosity design prevents premature plugging
These filters are ideal for whole-house systems
Pentek - WS-20BB - 20" x 4.5" Water Softening Resin Filter 10 inch x 2.5 inch Filters2640 The 1/3 cubic foot sizePentek Water Softening WS 20BB 20" x 4. 5" Softening Resin Cartridge Sodium form cation exchange resin in a drop in cartridge for point of use water softening 4,500 Grain Capacity 20" x 4. 5" Big Blue Reduces Scale 2. 0 GPM Flow The Pentek WS 20BB delivers water softening in a standard cartridge format, eliminating the need for a full softener tank. Sodium form cation exchange resin captures hardness minerals like calcium and magnesium, reducing scale
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