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Marine Depot Color Indicating Mixed Bed DI Cartridge


Item #: RO1153

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Unit Price

1 - 2


3 - 5


6 - 11


12 - or more


Temporarily Out of Stock

Deionization cartridge - Color Change - Standard 10" x 2.5" cartridge

Please note that these replacement cartridges are interchangeable with Marine Depot`s, Kent Marine`s, and SpectraPure`s RO or RO/DI units. We have researched the best replacement cartridges among these three manufacturers and offer only the best of each below.

**Variations of this product can be found in many online stores. The version we carry is of the highest quality. Although this item is eligible for price matching under our Low Price Guarantee, please be certain the product you want to price match is the same make and model.

Manufacturer information

Marine Depot was started in 1998 by a self-professed reef geek and pre-med student Ken Wong. Ken envisioned a one-stop shop where customers could find everything they needed, from technical product specifications, reef aquarium information, expert advice on the hobby and friendly one-on-one customer support. Having grown from a one-man crew to being one of the world’s largest suppliers of reef and marine aquarium products, this very core philosophy still lives strong in the Marine Depot culture 20 years later.

5 Stars


Reviewed on
July 10, 2019

No, I would not recommend this.

Lowest I could get was 1ppm

I have a new water conditioner (softener) on my home and I ordered a marine depot RODI which came with this filter. I could not get lower than 1-2 ppm with this filter. I bought a SpectraPure filter and immediately went to 0ppm. Possibly a fluke because it does have good reviews but ultimately costed me $25 more dollars

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Reviewed on
June 09, 2019

Yes, I would recommend this.

Excellent product

Tds back to 0 in seconds πŸ‘πŸ»πŸ‘πŸ»

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Reviewed on
January 22, 2019

Yes, I would recommend this.


Works like a charm

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Reviewed on
November 11, 2017

Yes, I would recommend this.

Great buy

Pros: Fits well

Cons: None

Fair price for a good product.

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robert a daley

Reviewed on
February 06, 2015

Yes, I would recommend this.

Clean water indeed

Having neglected to change my filters recently, this product came to me and my numbers instantly went from 0.56 to 0.00 on TDS meter in 2 minutes.

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Reviewed on
August 04, 2012

Yes, I would recommend this.

Clear color, great DI

I purchased this DI Filter to replace my aging one. This fit my RO/DI unit perfectly even though it is not one of the brands listed. My other DI color changed as well, but was a little hard to see. This one is dark like it should be and is easy to see when it is time to change. Works well, TDS back to 0.

Was this review helpful? 1 0

cheryl gray

Reviewed on
June 13, 2012

Yes, I would recommend this.

Mixed Bead Cartridge

awesome product, does a great job and I recommend this to everyone who wants cleaner water

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jonah clement

Reviewed on
October 13, 2011

Yes, I would recommend this.

Ro-di filters

It works great, Tds is back to 0!

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Reviewed on
April 17, 2008

Yes, I would recommend this.

Better than the original

I like it better than Kents original replacement. As soon as I put it in, my tds reading went from 30 to 0! What more can you ask for?

Was this review helpful? 4 0

richard seckel

Reviewed on
September 22, 2007

Yes, I would recommend this.

Mixed Bed DI Cartridge

Good product. removes about 99% of total tds going in. my tds meter reads 0-3 coming out

Was this review helpful? 4 0

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