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Marine Depot 1 Micron Microtec Sediment Replacement Filter


Item #: RO1113

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1 micron dual density gradient sediment filter—highly recommended due to longer life and cost effectiveness. Use with 1/2 micron carbon block filter to fully prefilter water down to 1/2 micron.
  • manufactured from 100% pure polypropylene fibers. The fibers have been carefully spun together to form a true gradient density from outer to inner surfaces.
  • polypropylene construction provides superior chemical resistance and is not prone to bacterial attack.
  • they will not impart taste, odor or color to the liquid being filtered when used within the recommended temperature limit.
  • designed for purity
  • 10 inches long
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
December 17, 2020

Yes, I would recommend this.


Pros: Effective, Cost, Fits perfectly!

Cons: No issues!

Does the job as a first-stage filter in any standard RO/DI system! Excellent pricing!

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Reviewed on
April 25, 2019

Yes, I would recommend this.


Pros: NONE



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Reviewed on
March 26, 2019

Yes, I would recommend this.

Works great

Great price for the filter and it fits my water filter.

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Reviewed on
June 05, 2017

Yes, I would recommend this.


Great price

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guy genung

Reviewed on
October 09, 2013

Yes, I would recommend this.

1 Micron Filter

Excellent product and price.

Was this review helpful? 0 1

grigory tsepenyuk

Reviewed on
February 25, 2012

Yes, I would recommend this.

Sediment filter/ro

Nice product, inexpensive, quality made, ease of use,I definitely recommend this to anyone who spends too much money on replacing their sediment filter on ro units.....

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david clark

Reviewed on
February 20, 2011

Yes, I would recommend this.

Good for the price but ...

Does a good job of filtering out sediment. Might do a better job for me, but it doesn't really fit the Spectrapure MPDI-25 unit. The center bore of the filter isn't wide enough to fit around the outer ring at the top and bottom of the housing ... I have to press the filter down so the ring is forced into the fibers of the filter, which may affect the filtering, and also causes the filter to be tilted within the housing (it's basically too high).

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keith husson

Reviewed on
January 01, 2009

Yes, I would recommend this.

RO filter

great product!!!

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Reviewed on
May 26, 2008

Yes, I would recommend this.

Excellent value

i have been using these sediment filters for a while now. Although this isn't the "best" you can get, these perform more than adequately, and the price is a huge plus. With my 4-stage RO/DI setup, and taking into account the cost of carbon filters (I use .5 micron), I have found these allow for more gallons/$, when compared to the more expensive models of sediment filters you can buy. The finer sediment filters get clogged quickly are are pricey to replace often, whereas these are inexpensive enough to replace on a regular basis.

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rodrigo octavio rojas diaz

Reviewed on
April 05, 2008

Yes, I would recommend this.

Micron Microtec Sediment Repla

very good work, helps me duration to a greater of the other Replacements.

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