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Pentek WS Series Filter

Pentek WS Series Filters

Also branded as: Pentek / Ametek / Culligan / Kleen Plus / Plymouth Products / Pentair / American Plumber / Bruner / US Filter WS Series

WS Series cartridges provide softened water in a convenient cartridge-style design.

These cation exchange softening cartridges utilize a bed of sodium form cation resin beads to reduce hardness and scale deposits.

The convenient and space-saving design of our WS Series cartridges means that softened water can be provided easily and cost effectively at the exact point of need.

WS Series cartridges are available in three different sizes and flow rates, and have a rated capacity of 750, 1,500 or 4,500 grains (as CaCo3) capacity.

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If you find a lower advertised price, we will beat it by 5% of the difference - just call toll free 1-866-376-2690 - we won't be undersold!

Pentek WS Filters Filters by the Case
Model Micron
Size # per
Buy a Case
Pentek WS-10
Part #15531943
n/a 2 5/8" x 9 3/4"
(67mm x 248mm)
MSRP: US$283.98
Price: US$173.95
You save: $110.03

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Pentek WS-20
Part #15532043
n/a 2 5/8" x 20"
(67mm x 508mm)
MSRP: US$396.05
Price: US$237.95
You save: $158.10

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Pentek WS-20BB
Part #15532143
n/a 4 1/2" x 20"
(114mm x 508mm)
MSRP: US$474.82
Price: US$282.95
You save: $191.87

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* Based on Manufacturer's internal testing.