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Home » Saltwater Aquarium Supplies  » Reverse Osmosis  » Replacement Filters  » Sediment Cartridges  »  1 Micron Microtec Sediment Replacement Filter
1 Micron Microtec Sediment Replacement Filter
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1 Micron Microtec Sediment Replacement Filter

Average Rating 5 7
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1 Micron Microtec Sediment Replacement Filter Information

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 Captive Purity`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.


  • 0.5 micron
  • 100% pure polypropylene fibers
  • 10 inches long

Manufacturer Info

Captive Purity manufactures water filtration and water testing supplies for marine and reef aquaria. The brand is best known for their high-quality line of reverse osmosis filter systems and accessories. Captive Purity also produces refractometers for testing salinity, portable pen-sized meters for testing pH as well as replacement filter media for their RO and RO/DI filter systems.


Maufacturers Warranty: 30 days from date of purchase

1 Micron Microtec Sediment Replacement Filter Reviews

Average Rating
(7 reviews)
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1 Micron Filter

Reviewers Rating Excellent!

Posted: 9/10/2013 from COLTON, CA UNITED STATES
5.0 5
Experience Level: Intermediate

Comments: Excellent product and price.

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Sediment filter/ro

Reviewers Rating Excellent!

Posted: 2/25/2012 from Brooklyn, NY UNITED STATES
5.0 5
Experience Level: Expert

Comments: 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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Good for the price but ...

Reviewers Rating Great

Posted: 2/20/2011 from CINCINNATI, OH UNITED STATES
4.0 5
Experience Level: Intermediate

Comments: 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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RO filter

Reviewers Rating Excellent!

Posted: 1/1/2009 from HARRISBURG, PA UNITED STATES
5.0 5
Experience Level: Beginner

Comments: great product!!!

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Excellent value

Reviewers Rating Excellent!

Posted: 5/26/2008 from San Francisco, CA
5.0 5
Experience Level: Intermediate

Comments: 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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Micron Microtec Sediment Repla

Reviewers Rating Excellent!

Posted: 5/4/2008 from MEXICO, MEXICO
5.0 5
Experience Level: Expert

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

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Reviewers Rating Excellent!

5.0 5

Comments: Works very well!

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