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Pentek

Pentair Pentek WS-10, 10" Water Softener Cartridge, 10" x 2.5"

    • Based on 94 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon
Arrives Thursday, May 9
Order within 16 hours and 32 minutes
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Size: 10" x 2.5"


Features

  • CARTRIDGES USE a sodium based, non-solvent rinsed softening resin to reduce hardness, minerals and scale deposits in low flow rate applications
  • FITS All 10" Slim Line or standard housings and can replace any 10" x 2.5" water softener cartridge
  • CARTRIDGE STYLE DESIGN PROVIDES A CONVENIENT SOLUTION for delivering softened water to protect sensitive water delivery equipment
  • DESIGNED TO ALLOW OPTIMAL CONTACT between water and resin surfaces, ensuring maximum ion exchange
  • 750 GRAIN CAPACITY. Cartridge utilizes single-use resin technologies for maximum life grains capacity

Description

Pentair Pentek WS Series Cartridges are designed to allow optimal contact between water and resin surfaces, ensuring maximum ion exchange. The internal expansion pad minimizes channeling, while the post-filter eliminates any potential for bypass. Designed for low water usage, these units will easily deliver softened product water through the use of a sodium based, non-solvent rinsed softening resin. The cartridge style design provides a convenient solution for delivering softened water to protect sensitive water delivery equipment. Water Softening Cartridges provide superior performance and outstanding protection for medical equipment, coffee and espresso appliances, low volume beverage and commercial food service machines.


Is Discontinued By Manufacturer ‏ : ‎ No


Product Dimensions ‏ : ‎ 2.63 x 1 x 9.75 inches; 1.01 Pounds


Item model number ‏ : ‎ WS-10


Date First Available ‏ : ‎ November 9, 2004


Manufacturer ‏ : ‎ Pentek


Country of Origin ‏ : ‎ China


Best Sellers Rank: #89,857 in Tools & Home Improvement (See Top 100 in Tools & Home Improvement) #71 in Water Softeners


#71 in Water Softeners:


Customer Reviews: 4.3 out of 5 stars 94 ratings


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, May 9

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews

    • This does work well! If you want to 'recharge' the resin with salt water, there is one trick you have to do first.
Size: 10" x 2.5"
This absolutely softens our hard FL water quite well... although keep in mind the low (750 grain) capacity. Get a water analysis kit to see how useful it will be for you... for instance, the water quality kit showed our water have approximately 20 grains per gallon. 750/20 = 37.5 gallons of softened water before the resin is depleted. However, you can recharge it with salt water, greatly extending its usefulness. Do NOT just dump the cartridge in salt water like I did at first... it will not recharge (or will do so very very slowly). You need to purge the water that's already inside the filter first, then ideally fill that filter with salt water afterwards. I used a water bottle, filled it with salt water, and squeezed it gently through the top of the filter.. you really have to get it so it seals at the top of the filter. it purged out the fresh water and replaced it with salt water, allowing the resin to recharge. Works good as new after a day or so. ... show more
Reviewed in the United States on October 11, 2017 by DK3
    • Open this immediately - my second filter totally smashed - Filter does an OK job
Size: 20" x 4.5"
Review Image by BAR9701
Review Image by BAR9701
I have used these filters to reduce the hardness in our water in our condo (which cannot support the traditional Water softener that requires salt to be replaced and a large space. You have to change these filters frequently as their life span is limited. I re-ordered two of the Pentek WS--20BB (I always try and have one in reserve as I measure the hardness of the water and sometimes I have to replace the filter in advance of the manufacturers recommended number of gallons it will process). I opened the first box upon receipt and installed it in my Big Blue. The filter you will find is not perfect but it does an adequate job in a condo environment (better than nothing) and it cut the hardness of our water in half (clothes are cleaner, dishes do not cloud, etc.). I just arrived at the recommended replacement point (more than 30 days later), based on water flow rate and the second WS-20BB filter was smashed and damaged - see pictures. My recommendation - first, open these filters immediately upon receipt and thoroughly check for damage. Second, DO NOT ORDER TWO or MORE at a time. Amazon needs to pack these filters with some padding when sending more than one filter (BTW - there is no padding in the packing the box the filter is delivered) as the filters are very heavy, which probably attributed to the damage to the top of the second filter which was leaking "brown" sand type material used in the water softener process. ... show more
Reviewed in the United States on September 14, 2021 by BAR9701
    • It's a softener cartridge and it works.
Size: 10" x 2.5"
I use these in a paired configuration (first this, then a carbon filter for taste and particulates) inline with my espresso machine's feed water. Hard water is very bad for your high-dollar coffee maker; it scales the boiler and eventually will destroy it if not prevented from doing so or being cleaned out. Note that these cartridges should never be used without a carbon filter after them as they may release small amounts of particulates into the water stream from the resin block, and that isn't good for your machine either. Service life on these depends on how hard your water is (you don't need it if it's not hard) and how much water goes through it. I use it on my hard-plumbed espresso machine which gets heavy, but home, use. For me these are a six-month-replacement cycle thing. I change this element every other time I change the carbon filter, which I do every three months. You have to set that schedule based on your water and its hardness; mine is quite hard and I've monitored for scale buildup in my boiler and have found none over a period of several years, so on the evidence I'm changing it "often enough." This is one of those things where it either works or doesn't, and if it does then it's either cheap or it isn't. Well, it works and it's materially cheaper than the other sources I've found for these, so therefore it gets five stars. :-) ... show more
Reviewed in the United States on January 9, 2014 by Tickerguy
    • NOT for whole house use.
Size: 20" x 4.5"
Spoke to Pentek regarding previous failed filter and found out this filter is not rated for whole house use. Water around 10-12 grains of hardness, at most this filter would last 2-4 weeks....NOT months. Do not buy for whole house application, unless willing to spend alot every month on this cartridge. ... show more
Reviewed in the United States on March 3, 2019 by Nathan
    • Doesn't work
Size: 10" x 2.5"
I have successfully used this specific product before and it worked great. However, this time the first one I ordered did not work so I ordered another one under the assumption that I just got a bad one. Same thing again. I then ordered a different vendor's softener cartridge and it worked fine. It is possible that the seller got a bad batch and that the two I ordered a few days apart came from the same bad batch. However, keep this in mind should you decide to order one. ... show more
Reviewed in the United States on March 1, 2020 by Charles Rimpo
    • Excellent Product.
Size: 10" x 2.5"
We have very hard water and this filter worked great. I used to have to scrub the tub every few days and with this filter I don't have any blue or red stains. My daughter and I both have blonde hair and this filter helped to keep the mineral deposits from discoloring our hair. No water spots when washing the car. I would highly recommend this product and will buy again. ... show more
Reviewed in the United States on July 25, 2016 by TerriJ
    • Works as intended
Size: 10" x 2.5"
I came back and redid my review. I did more research and learned that TDS does not change when using a softener cartridge like this and I needed to use total hardness tests. I bought a total hardness test and confirmed this softener does work.
Reviewed in the United States on February 17, 2021 by Timmy Nguyen
    • Increased total TDS
Size: 10" x 2.5"
Filter did not work, in fact it added material into the water. The TDS was ten ppm higher than unfiltered tap water. Very disappointed.
Reviewed in the United States on February 23, 2021 by gDog!

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