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6-stage Water Filter Cartridge

GAC+KDF Filter, 6-stage Water Filtration Cartridge, CQ-RC-PL-10

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Brand:Crystal Quest
Weight:2 LBS.

In stock

Made in USA

6-stage Filter Cartridge by CRYSTAL QUEST, a standard 10"x2.5" replacement filter cartridge that is commonly utilized in different combo-filtration systems. It is the main workhorse cartridge for CRYSTAL QUEST's filter systems that uses the 10"x2.5" filter cartridge housing. It is best used for low-flow applications such as counter top and under sink setups. Inside this filter cartridge is a combined bed of advanced filtration media that targets hundreds of contaminants from your drinking water. The water treatment technology applied by both Coconut Shell Carbon or Granulated Activated Carbon (GAC) and KDF Media ensures that water comes to you at the cleanest and purest state.

Key Features and Benefits:

  • 6 Stage filtration process.
  • Combined media for wider range of contaminants.
  • Fits in most Crystal Quest Filtration applications.
  • Equipped with Coconut Shell Carbon(GAC) and advance KDF media.
  • Variant specification for different filtration capacity.

Filter Configurations:

SKUFiltration Capacity (up to)Filter Life
PLUS (CQ-RC-PL-10, CQE-RC-04002)10,000 gallons1-3 years
ULTRA (CQ-RC-UL-10, CQE-RC-04003)20,000 gallons2-4 years
ULTIMATE (CQ-RC-UM-10, CQE-RC-04004)30,000 gallons3-5 years

* The main difference between the 3 cartridges is the amount of KDF / Eagle Redox media (which is a mix of copper and zinc) used. Less expensive cartridge will have more charcoal and less Redox, and more expensive cartridges will have more Redox.


Operating Temperature (°F):40°F (5°C) - 100°F (38°C)
Operating Pressure(PSI):20 psi (1.4 bar) - 60 psi (4.2 bar)
Design Flow Rate (Gallons per Minute, gpm):0.3 gpm - 0.5 (suggested)
Micron Rating:1 nominal
Filter Life(months):6-12 months
End Caps:Polypropylene #5
Inner/Outer Wraps:Polyolefin
Netting:Food Grade High-density Polyethylene

BPA-free logoEagle Redox Alloy
NSF 42 certification
NSF Standard 42
NSF 61 certification
NSF Standard 61

Product Ratings and Reviews
Product Rating: 11110(4.25)   # of Ratings: 4   (Only registered customers can rate) Login to Rate

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Customer Reviews : 3 Review(s)
1. dan on 6/15/2015, said: 11111

I use this mounted before the water line goes to the frig and filters it again. I get water from the frig for everything cooking drinking etc.. It tastes great but after a year I recommend replacing because the housing tends to get stagnent and needs a good cleaning. Great product.
  (1 people found this comment helpful, 0 did not)
2. Joel on 6/27/2011, said: 11000

Lasted only about 4-6 weeks in a home with 2 adults. When it was working, before the water flow came to a trickle the water was very good quality. Would not purchase again as it does not last. Expected at least 3 months from it. We have a lot of iron in our water.
  (2 people found this comment helpful, 0 did not)
Comment Reply: Joel, thanks for your comment. Lots of iron should clog these filters, as it tries to remove iron and has a limited capacity for it. When filtering lots of iron with a countertop or under sink system, we recommend filtering through an iron removal cartridge first, which means you need to have a standard 10"x2.5" dual or triple filter system, or purchase a separate 10 inch inline housing for iron filter.

3. Kyle on 2/1/2011, said: 11111

The 6-stage Filter Cartridge works amazing! My mother and I both use this product. It filters our water so good, it taste better than when you buy it bottled at the store. Both my house and my mother’s house are very old. The water piping we have is quite old, and was giving off a metallic taste. After using or water filtered through the cartridge, its taste heavenly! A+++product!
  (2 people found this comment helpful, 0 did not)
: 3 Review(s)