---
product_id: 4514585
title: "DI Color Changing Mixed Bed Resin Cartridge, Aquarium, Hydroponics"
brand: "aquatic life"
price: "A$60"
currency: AUD
in_stock: true
reviews_count: 8
category: "Aquatic Life"
url: https://www.desertcart.com.au/products/4514585-di-color-changing-mixed-bed-resin-cartridge-aquarium-hydroponics
store_origin: AU
region: Australia
---

# Zero TDS water output Easy inline installation Color-changing resin DI Color Changing Mixed Bed Resin Cartridge, Aquarium, Hydroponics

**Brand:** aquatic life
**Price:** A$60
**Availability:** ✅ In Stock

## Summary

> 💧 Transform your water, transform your life — see purity in color!

## Quick Answers

- **What is this?** DI Color Changing Mixed Bed Resin Cartridge, Aquarium, Hydroponics by aquatic life
- **How much does it cost?** A$60 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/products/4514585-di-color-changing-mixed-bed-resin-cartridge-aquarium-hydroponics)

## Best For

- aquatic life enthusiasts

## Why This Product

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

## Key Features

- • **Trusted Quality:** Backed by AquaticLife’s rigorous standards and 4.6-star rating from over 1,300 users.
- • **Plug & Play Design:** Inline cartridge fits seamlessly with 1/4" tubing and most RO/DI systems—no hassle, no fuss.
- • **Visual Resin Status:** Color-changing resin shifts from blue to tan, so you never guess when to replace.
- • **Pure Water Guarantee:** Reduces Total Dissolved Solids (TDS) to absolute zero for crystal-clear, contaminant-free water.
- • **Universal Compatibility:** Works flawlessly with AquaticLife RO Buddie and most other reverse osmosis units for versatile use.

## Overview

The Aquatic Life DI Color Changing Mixed Bed Resin Cartridge is a high-performance inline deionization filter designed to reduce Total Dissolved Solids to zero. Featuring a unique color-changing resin that visually signals exhaustion, it ensures timely replacement and optimal water purity. Compatible with most RO/DI systems, it offers easy installation with 1/4" press fittings and is trusted by thousands for aquarium and hydroponic water filtration.

## Description

For use with Aquatic Life RO Buddie Reverse Osmosis Units. Not to be used as an inline refrigerator filter, max working pressure is 35 psi. Now filled with color changing deionization resin, a high-quality resin mixture for direct purification of water. The residuals produce average conductivity values of about 0.1us/ cm for a major portion of the service run which may be extended depending up on the final acceptable water quality - Clear cylinder housing with one white connection port on each end - Blue resin visible through the cylinder - Includes two clips for mounting to an Aquatic Life RO Buddie.

Review: Nice! High quality. - Why did you pick this product vs others?: Works well.
Review: Works Great But make sure to tighten cap - I have purchased a bunch of these over the years and they consistent bring my TDS down to 0 for my RODI water supply. Make sure to double check the caps as they sometimes come delivered untightened and can leak after installation

## Features

- COLOR-CHANGING DEIONIZATION RESIN – AquaticLife Mixed-Bed Deionization Filter Cartridge contains positive Cations and negative Anions, each in a different color. DI Resin physically changes colors from Blue to Tan when the media is exhausted.
- REDUCES TOTAL DISSOLVED SOLIDS TO ZERO – The deionization resin is necessary to reduce Total Dissolved Solids (TDS) to zero in the final stage of an RO/DI system. It uses ion exchange to remove TDS from water.
- INLINE CARTRIDGE DESIGN – The inline DI filter cartridge design is easy to plumb into many different types of filtration needs. Simply connect to the 1/4" Press Fittings on each end of the cartridge. Maximum 35 PSI.
- COMPATIBLE WITH MOST RO/DI UNITS – This RO Buddie replacement filter cartridge is compatible with all AquaticLife RO units and only requires standard ¼” tubing to connect. This deionization water filter can be used with most other reverse osmosis water filter systems and RO/DI units.
- UNSURPASSED QUALITY AND SATISFACTION – AquaticLife manufactures an assortment of aquarium and water filtration equipment. Every product that goes out the door meets our highest standards and quality.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Aquatic Life |
| Color | Blue |
| Customer Reviews | 4.6 out of 5 stars 1,397 Reviews |
| Finish Type | Resin |
| Item Volume | 50 Gallons |
| Size | 1 Count (Pack of 1) |
| Special Feature | Color Changing |

## Product Details

- **Brand:** Aquatic Life
- **Color:** Blue
- **Finish Type:** Resin
- **Indoor/Outdoor Usage:** Indoor
- **Item Volume:** 50 Gallons
- **Size:** 1 Count (Pack of 1)
- **Special Feature:** Color Changing
- **Specific Uses For Product:** Interior
- **Surface Recommendation:** Plastic
- **Unit Count:** 1 Count

## Images

![DI Color Changing Mixed Bed Resin Cartridge, Aquarium, Hydroponics - Image 1](https://m.media-amazon.com/images/I/71ga4jV85dL.jpg)

## Questions & Answers

**Q: There are 2 sizes of this product on a different website. Can anyone verify if this is the 21 or 31 cubic in. version?**
A: I am unsure what u mean by 21/31 cubic in, I bought this cartilage for my 100 gallon per day aquatic life ro filter and have since put out hundreds of gallons of 0ppm water, it has started changing color but still has long way to go, without the di cartilage the filter puts out 15ppms with the intake water being just under 200ppm

**Q: How often do i need to replace this cartridge?**
A: It's refillable. Top cap is removable and replacement resin may be purchased much cheaper than a cartridge. Depends on amount of water passed through it as well as how contaminated it may be.

**Q: Will I need to purchase any tubing or any other additional pieces aside from the RO Buddie itself?**
A: Yes you will need extra tubing for the r/o buddie. I just got my r/o buddy a few days ago. Make sure you cut the tubing clean. Otherwise it will leak. first 10 gallons have been 0 ppm. And my saltwater tank looks amazing.

**Q: My cartridge does not remotely look green, it's more like a shimmering black, purple, and blue. Anyone else had that problem?**
A: Is it blue when new or it turned blue?  Mine is green.  I think if it's blue it's used.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Nice! High quality.
*by M***. on July 15, 2025*

Why did you pick this product vs others?: Works well.

### ⭐⭐⭐⭐⭐ Works Great But make sure to tighten cap
*by A***I on February 11, 2025*

I have purchased a bunch of these over the years and they consistent bring my TDS down to 0 for my RODI water supply. Make sure to double check the caps as they sometimes come delivered untightened and can leak after installation

### ⭐⭐⭐⭐⭐ Esto es justo lo que necesito
*by Y***I on November 21, 2025*

Excelente producto definitivamente bajo mis ppm a 0 lo recomiendo

## Frequently Bought Together

- Aquatic Life DI Color Changing Mixed Bed Resin Cartridge, Aquarium, Hydroponics
- Aquatic Life RO Buddie Sediment Cartridge
- AQUATICLIFE Inline RO Buddie Replacement Cartridges - Includes Carbon Block Filter, Sediment Cartridge and 50 GPD Membrane for RO/RODI Reverse Osmosis Deionization Water Filter System Units

---

## 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.com.au/products/4514585-di-color-changing-mixed-bed-resin-cartridge-aquarium-hydroponics](https://www.desertcart.com.au/products/4514585-di-color-changing-mixed-bed-resin-cartridge-aquarium-hydroponics)

---

*Product available on Desertcart Australia*
*Store origin: AU*
*Last updated: 2026-02-02*