---
product_id: 66232030
title: "Purolite C-100E Cationic Resin Replacement for Water Softener 1 CuFt Bag Media"
brand: "durawater"
price: "¥98907"
currency: JPY
in_stock: true
reviews_count: 11
category: "Dura Water"
url: https://www.desertcart.jp/products/66232030-purolite-c-100e-cationic-resin-replacement-for-water-softener-1
store_origin: JP
region: Japan
---

# efficient water softening kinetics low extractables for purity 1 cu ft high-capacity resin Purolite C-100E Cationic Resin Replacement for Water Softener 1 CuFt Bag Media

**Brand:** durawater
**Price:** ¥98907
**Availability:** ✅ In Stock

## Summary

> 💧 Upgrade your water, upgrade your life — soft water, smart savings!

## Quick Answers

- **What is this?** Purolite C-100E Cationic Resin Replacement for Water Softener 1 CuFt Bag Media by durawater
- **How much does it cost?** ¥98907 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/66232030-purolite-c-100e-cationic-resin-replacement-for-water-softener-1)

## Best For

- durawater enthusiasts

## Why This Product

- Trusted durawater brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **DIY-Friendly Upgrade:** Easily replace old resin and save thousands on system replacement with a straightforward 5-6 hour installation.
- • **Trusted by Thousands:** Join over 1,000 satisfied users who rated it 4.6 stars for reliable, long-lasting water softening.
- • **Premium 1 Cu Ft Resin Media:** Maximize your water softener’s lifespan with a full cubic foot of high-performance cationic resin.
- • **Cleaner, Softer Water Guaranteed:** Low extractables ensure your water tastes pure and leaves no unwanted residues or odors.
- • **Optimized Regeneration Efficiency:** Experience superior ion exchange kinetics that reduce salt and water waste during regeneration cycles.

## Overview

Purolite C-100E is a 1 cubic foot cationic resin replacement designed for water softeners, delivering efficient regeneration and excellent kinetic performance with low extractables. Ideal for DIY enthusiasts, it revitalizes aging systems, reduces salt usage, and improves water quality, all while saving significant replacement costs.

## Description

Purolite C-100E Cationic Resin Replacement for Water Softener 1 CuFt Bag Media - desertcart.com

Review: This resin really works - I was able to completely disassemble, thoroughly clean, and change the resin in my 12-yo Coolligan water softener in ~5 hours from A to Z. Required tools and materials: 1. The big blue funnel + a table spoon or whatever scoop you find 2. 1 bag of the resin being reviewed (1 cu ft) 3. 1 bag of gravel (15lbs) for water softeners. DO NOT FORGET TO WASH IT WITH FRESH CLEAN WATER before using! I do not recommend saving a few bucks and washing the old one, the time costs more. 4. Direct hands (TM) driver. Steps I did: 1. Closed water line to the water softener 2. Disconnected the resin tank, the salt tank and unscrewed the head from the resin tank 2a. Removed the inlet/outlet pipe from the tank (it's the only pipe inside the resin tank) 3. Drained as much water as possible using silicone tubes (my tank was dug ~2ft deep), this tank filled is heavy as my freaking life, otherwise 4. Dropped some large cloth to drain water, resin, and gravel (an old linen sheet that was used by my ex worked great!). You do not want to reuse the old gravel, just like you don't want to use sheets that were used with your ex:) 5. Thoroughly wash the resin tank, the salt tank, the pipe, and the head, i.e. everything that is possible to reach and clean 6. Sealed the top of the inlet/outlet pipe with painter's tape (to prevent particles getting in) 7. Inserted the tube vertically, centered and put the new _washed_ gravel in 8. Using a blue funnel for resing, patience, and time, shove the resin beads back into the tank 9. Assembled everything back, and put water back on. 10. ??? PROFIT!!! You'll notice that the water got softer, if: a. objective measurements say so b. dishwasher delivers better results (no white spots, crystal-clear glasses) c. harder to wash soap away while showering I did not experience any odors or bad smells, if only very little right after I changed the resin, it had gone in a few days completely. But I bet, I would never have noticed it if I hadn't known that I changed something in my system. Yes, this product is great. Yes, I spent ~5-6 hours of my life. Yes, I got satisfaction while working on this project. And yes, I saved about $1500, paying about 150-200 total. I highly recommend this product and the brand in particular.
Review: Good proce. does the job. - Got this for my 10 year old water softener. We have alot of iron in our well water and it clogged up our softener even though we installed in Iron filter before it.(though it was installed after the softener was already there at the house. This doesn't look like the same stuff coming out of the existing softener but it does the job. I didn't want to replace the entire system, just the "media" and this does the job at 1/3 the price of the new system. My softener has an auto setting where it reads how much water you use and you tell it the hardness of the water. It only runs the purge cycle once in about a week or two depending on how much water we use. Some of the older old school softener are wasteful of the sult and does the recharge every few days or whatever even if you go on vacation.

## Features

- Advantages - Efficient regeneration - Good kinetic performance - Low extractables

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B078PTDFDF |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #82,711 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #70 in Water Softeners |
| Color | resin |
| Customer Reviews | 4.6 4.6 out of 5 stars (1,063) |
| Date First Available | December 29, 2017 |
| Included Components | 1 cu. ft. |
| Is Discontinued By Manufacturer | No |
| Item Package Quantity | 1 |
| Item Weight | 49 pounds |
| Item model number | C100E |
| Manufacturer | Purolite |
| Part Number | Purolite-1Cuft |
| Product Dimensions | 18 x 14 x 8 inches |

## Images

![Purolite C-100E Cationic Resin Replacement for Water Softener 1 CuFt Bag Media - Image 1](https://m.media-amazon.com/images/I/21frjYYrieL.jpg)
![Purolite C-100E Cationic Resin Replacement for Water Softener 1 CuFt Bag Media - Image 2](https://m.media-amazon.com/images/I/31Ud7e25JxL.jpg)
![Purolite C-100E Cationic Resin Replacement for Water Softener 1 CuFt Bag Media - Image 3](https://m.media-amazon.com/images/I/41A3S4UOoYL.jpg)
![Purolite C-100E Cationic Resin Replacement for Water Softener 1 CuFt Bag Media - Image 4](https://m.media-amazon.com/images/I/41u6AJnqIZL.jpg)
![Purolite C-100E Cationic Resin Replacement for Water Softener 1 CuFt Bag Media - Image 5](https://m.media-amazon.com/images/I/51mbmJaF1hL.jpg)

## Questions & Answers

**Q: what is the difference with 8% verses 10% cross linked resin?**
A: The 10% resin has a harder shell than the 8% making it more chlorine resistance. So 10% would last longer on a chlorinated water supply. 
The folks at Aplus Water.

**Q: Will this resin work in a kinetico k60 system?**
A: Yes it should do the trick to restore your softener. I installed this resin in my system three years ago and it has been working like new ever since.

**Q: Will this work in a spring mate by brauch water conditioning co.?  it's about 28 yrs. old.**
A: This is standard mesh softening resin that should work in any water softener. If you have any doubts, be sure to check with the manufacturer of your water softener brand. 
The Folks at APlus Water LLC

**Q: A lot of iron where I am at. Will this help with keeping iron rust orange from coming through**
A: I assume your water has 1-10 PPM iron.  Most likely 2-3 PPM Iron.  Have your water tested for free so you know what your working with.  If more than 10 PPM than your need a special industrial system. I have a iron filter. Uses water to clean the coconut shell media. Iron filter about $1,200.00. Other medias are available based on your water. Other than that you can use your water soften to remove the iron. Hopefully you water softener can handle iron. If not then you might want a Iron breaker water soften for about $2,200.00. Or as I have a Whirlpool 33,000 Grain Water Softener about $400.00. Lastly many other new models are out there. Do your research so you don't buy options/equipment you don't need.

## Customer Reviews

### ⭐⭐⭐⭐⭐ This resin really works
*by D***Y on February 10, 2024*

I was able to completely disassemble, thoroughly clean, and change the resin in my 12-yo Coolligan water softener in ~5 hours from A to Z. Required tools and materials: 1. The big blue funnel + a table spoon or whatever scoop you find 2. 1 bag of the resin being reviewed (1 cu ft) 3. 1 bag of gravel (15lbs) for water softeners. DO NOT FORGET TO WASH IT WITH FRESH CLEAN WATER before using! I do not recommend saving a few bucks and washing the old one, the time costs more. 4. Direct hands (TM) driver. Steps I did: 1. Closed water line to the water softener 2. Disconnected the resin tank, the salt tank and unscrewed the head from the resin tank 2a. Removed the inlet/outlet pipe from the tank (it's the only pipe inside the resin tank) 3. Drained as much water as possible using silicone tubes (my tank was dug ~2ft deep), this tank filled is heavy as my freaking life, otherwise 4. Dropped some large cloth to drain water, resin, and gravel (an old linen sheet that was used by my ex worked great!). You do not want to reuse the old gravel, just like you don't want to use sheets that were used with your ex:) 5. Thoroughly wash the resin tank, the salt tank, the pipe, and the head, i.e. everything that is possible to reach and clean 6. Sealed the top of the inlet/outlet pipe with painter's tape (to prevent particles getting in) 7. Inserted the tube vertically, centered and put the new _washed_ gravel in 8. Using a blue funnel for resing, patience, and time, shove the resin beads back into the tank 9. Assembled everything back, and put water back on. 10. ??? PROFIT!!! You'll notice that the water got softer, if: a. objective measurements say so b. dishwasher delivers better results (no white spots, crystal-clear glasses) c. harder to wash soap away while showering I did not experience any odors or bad smells, if only very little right after I changed the resin, it had gone in a few days completely. But I bet, I would never have noticed it if I hadn't known that I changed something in my system. Yes, this product is great. Yes, I spent ~5-6 hours of my life. Yes, I got satisfaction while working on this project. And yes, I saved about $1500, paying about 150-200 total. I highly recommend this product and the brand in particular.

### ⭐⭐⭐⭐⭐ Good proce. does the job.
*by T***O on May 21, 2025*

Got this for my 10 year old water softener. We have alot of iron in our well water and it clogged up our softener even though we installed in Iron filter before it.(though it was installed after the softener was already there at the house. This doesn't look like the same stuff coming out of the existing softener but it does the job. I didn't want to replace the entire system, just the "media" and this does the job at 1/3 the price of the new system. My softener has an auto setting where it reads how much water you use and you tell it the hardness of the water. It only runs the purge cycle once in about a week or two depending on how much water we use. Some of the older old school softener are wasteful of the sult and does the recharge every few days or whatever even if you go on vacation.

### ⭐⭐⭐⭐⭐ Best way to open bag
*by B***N on February 27, 2024*

This was my first time "re-bedding" a water-softener, so after watching all the "how-to" videos I could stomach, when I got this bag of replacement resin my first thought was "holy smokes this box is heavy" and my second thought later on was "how do I open this bag so it doesn't spill everywhere?" I finally decided to just leave it on its side in the box, and then I carefully cut a flap out of the plastic side of the bag (with a box-cutter) and folded it over to reveal the resin, which is very much like the consistency of damp sand. (Note the inch or so of border around the flap opening; this is to keep the resin from spilling over the sides while you scoop it out.) This worked incredibly well, and by using the blue plastic tumbler that I already had as a scoop and the (accidentally) matching blue funnel that I ordered (which really did help), I was able to transfer all the new resin into the tank with no spillage whatsoever. The resin itself must be good, because after getting everything back together and regenerating, I'm now measuring zero grains per gallon of hardness, just as it should be. (I should mention that I cleaned out the brine tank after doing the resin, which sorely needed it (I didn't have a salt-bridge as much as a salt-tectonic-plate), and after everything was back together I gave the brine a full day to reach maximum strength before doing a regeneration. Even after regeneration, I had to run quite a bit of water through all of my pipes before getting to the fully soft stuff, so don't rush to judgement; it's surprising how much water-mixing goes on in your pipes, so open them all up at the same time and flush out all the hard stuff before measuring your results at the faucet closest to the softener!) Overall this was $2000 less than getting a whole new softener. Yeah, it took about 4 hours for replacing the resin (I work slowly and take breaks) and probably a couple more for the brine tank, but all things considered, for two grand I'd do this job myself again in a heartbeat. Definitely worth it. Great resin, great price, great result. Can highly recommend.

## Frequently Bought Together

- Purolite C-100E Cationic Resin Replacement for Water Softener 1 CuFt Bag Media
- American Water Solutions Multi Purpose Filling Funnel 2.5" x 10"
- American Water Solutions Water Softener Gravel - Filter Bed Media for Filter Tanks, Water Conditioners, and Water Softeners - Pure Filtration Grade Bedding Perfect for Backwashing Tanks (15 Lbs)

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.jp/products/66232030-purolite-c-100e-cationic-resin-replacement-for-water-softener-1](https://www.desertcart.jp/products/66232030-purolite-c-100e-cationic-resin-replacement-for-water-softener-1)

---

*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-02-02*