Water Softener Resin Media Replacement 100% Ion Exchange Cation - 1/2 CuFt

  • Based on 62 reviews
Condition: New
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Fulfilled by iFilters

Arrives Feb 1 – Feb 5
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  • 1/2 Cubic Foot. Perfect for portable water softeners.
  • 16,000 Grain Capacity
  • High quality replacement resin.
  • NFC Certified for use in treatment of food for human consumption.
  • High exchange, mechanical strength and uniform particle with good hydraulics characteristic


Half a Cubic Foot, perfect for portable water softeners needing resin media replacement. 100% compatible replacement for any water softener system using 1/2 Cubic Feet of media with 16,000 grains capacity. iFilters cation resin provides a high purity, premium cation resin designed for the treatment of foods, beverages, potable waters, and water used in the processing of food. iFilters resin is a high grade resin which complies with the U.S. Food & Drug Administration (USFDA) for use in the treatment of foods for human consumption. Specifications: Screen Size Range - US Standard Screen: 16 - 50 mesh, wet. Particle Size Range: +1.2 mm less than 5%, -0.3 mm less than 1%. Moisture Retention, Na+ form: 46 - 50%. Swelling Na+ greater than H+: 8 - 10%. Specific Gravity, Moist Na+ Form: 1.27. Total Exchange Capacity, Na+ Form (Wet, volumetric: 1.9 eq/l min.) (Dry, weight: 4.5 eq/kg min.). Operating Temperature, Na+ Form: 248°F (120°C). pH Range Stability, Na+ Form: 0 - 14. pH Range Operating, Na+ Form: 6 - 10. 100% compatible with the following systems: iFilters Water Softeners: WS-P-1017. On The Go: OTG4-StdSoft, OTG4-DBLSOFT & OTG4-PSOFT. ABCWaters: PWS16. Flow-Pur 10,000 M7002 (Requires 0.33 CuFt). Mobile-Soft-Water: MSW0844-M-32S-W (Requires 1 CuFt Bag), MSW0844-M-32S-C (Requires 1 CuFt Bag), MSW0940-M-32S-C-PRO (Requires 1 CuFt Bag), MSW0918-M-16S (Requires 1/2 CuFt), MSW0918-M-16S-C (Requires 1/2 CuFt), MSW0918-M-16S-C-PRO (Requires 1/2 CuFt), HTS0818-M-12.8S-C (Requires 0.4 CuFt) & MSW0618-M-6400S-C (Requires 0.2 CuFt). And any other brand water softener needing high quality resin media. This package of 1/2 CuFt media offers 16,000 grains capacity. Some portable systems require 16,000 - 32,000 grains capacity. Systems with 32,000 grains capacity need a full 1 CuFt of media. INTERNATIONAL EQUIVALENTS: Amberlite SR1L (American), Diaion SK-1 (Japan), Dowex HCR-SS (American), Lewatit S100 (German), Purolite C100 and C100E (England).

Manufacturer: ‎iFilters

Part Number: ‎MED-CAT-025/2

Item Weight: ‎27 pounds

Product Dimensions: ‎12 x 12 x 6 inches

Color: ‎Brown

Material: ‎Other

Item Package Quantity: ‎1

Date First Available: February 8, 2018

Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Feb 1 – Feb 5

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

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Top Amazon Reviews

4.0 out of 5 stars | So far, so good. Fast delivery, no damage, works as expected.
I purchased 1/2 CuFt of resin to increase the capacity of an underfilled softener resin tank. Shipment was quick, and there was no damage to the bags containing the resin, which has identical appearance to the resin already in the tank. The only reason for less than 5 stars was that the price would have been lower elsewhere, but I needed it quickly (and it was delivered quickly). Note that when adding new resin, a small amount of leaching- fractured beads/residue- is normal and to be expected when water is first passed through the tank. After connecting the softener tank, I ran water from a faucet near the connection. The water started discolored (gold/tan), but after about 5 gallons ran completely clear. Again, this initial discoloration is to be expected with fresh resin, and I cannot say whether it was from the resin I bought here, or the resin (also fresh) already in the tank. I anticipate no problems with the resin.
Reviewed in the United States on November 12, 2021 by viking wannabe

5.0 out of 5 stars | Good product and price
We live full time in a RV and use a lot of water. Our on the go water softener showed signs of needing resin replacement. Prices were so high for the resin, we were considering full unit replacement. Now we should be good for another 10 years without paying an arm and a leg. Shipping was prompt and free. The box was heavy!
Reviewed in the United States on February 6, 2020 by all across america

5.0 out of 5 stars | Resin Refill for Water Softener
We have had our softener for @ 8 years and felt it was time to renew. Followed instructions on video and it worked perfectly. This was about 1/2 price of other sellers and results were immediate. Good value.
Reviewed in the United States on April 19, 2020 by rat58

3.0 out of 5 stars | Good resin, poor packing
I purchased four bags of resin. I replaced it in my 25-year-old water softener. It seems to be working well. However, upon opening the box when it arrived, I found two of the bags busted open. Even though the box itself was not damaged at all. Makes a big mess. Packing needs to be better. Otherwise, I would have given a five-star review.
Reviewed in the United States on October 2, 2021 by K. Marks

1.0 out of 5 stars | Very Frustrated!
Resin must have been seconds or floor sweep of fines from bead size screening for trusted product. Cleaned tank, replaced distributors with OEM parts, and loaded new resin. Service, backwash, and rinse flow rates reduced by 75% in 20 seconds. Resin fines plugged distributors. Removed resin and captured attached photos that shows inconsistency of bead diameters. Just bought new resin with real specifications especially on size guarantee. This product needs specification or just plain transparency for what is being presented to buyer. Lots of frustration and time wasted!
Reviewed in the United States on September 25, 2021 by John Grant

5.0 out of 5 stars | Delivered by USPS damaged
One bag was opened when I unboxed it. Made for a huge mess and I don't know how much I lost.
Reviewed in the United States on August 19, 2020 by Raceguy44

5.0 out of 5 stars | rv water softner refill
bought this for a medium size on the go rv watersoftner. perfect amount for refill. good results. water is soft and sudsy when showering or doing laundry.
Reviewed in the United States on January 25, 2019 by Kirk B

5.0 out of 5 stars | Works As advertised
Liked how easy it was was to use and replace the older stuff
Reviewed in the United States on May 19, 2021 by Glenda Frazier

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