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Multi-Stage Cartridge Filter
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6 Stages of Filtration

  • Stage 1: Sediment Filter

  • Stage 2: One-micron filter pad,

  • Stage 3: ERA-6500 Layer,

  • Stage 4: ERA-9500 Layer,

  • Stage 5: GAC Layer,

  • Stage 6: Ion exchange resin Layer,

  • Stage 7: One-micron pad.

See The List of Contaminants Removed (6 page PDF Report) 

Why You Should Choose Our Multi-Stage Cartridge: It's the Best!
Our Multi-Stage Cartridge eliminates literally hundreds of impurities typically found in tap water to offer you great tasting, clean and pure drinking water. It is also very attractive and economical. This 6 Stage Filtration system is a truly robust system and effectively removes hundreds of contaminants from water. It is a solid state water filter which uses the latest technologies that blend the adsorption capabilities of coconut shell activated carbon with Eagle Redox Alloy®. This combination has been tested to boost filtration capacity to remarkable levels.

The 6 Stage cartridge filter is designed to last between 1 year or treat up to 10,000 gallons of water*. You can tell when the filter needs changing because it will either stop working or slow to trickle. This unique water system is great for homes, apartments or office use.

Crystal Quest's 6 Stages of Filtration:

Stage 1: Water flows through pre and post one - micron filter pads (1 micron equals 1/25,000th of an inch), which removes suspended particles such as silt, sediment, cyst (Giardia, Cryptosporidium), sand, rust, dirt, and other un-dissolved matter.

Stage 2 and 3,
water flows through a bed of media made of a special high-purity alloy blend of two dissimilar metals - copper and zinc (Eagle Redox Alloy® 6500, and Eagle Redox Alloy® 9500.) Eagle Redox Alloy® is a major advancement in water treatment technology that works on the electro-chemical and spontaneous-oxidation-reduction (REDOX) principles. Chlorine is instantaneously and almost inexhaustibly oxidized. Tests on Eagle Redox Alloy®/GAC cartridge have shown 99% chlorine removal even after 20,000 gallons of water passed through the filter. In comparison, carbon cartridges of comparable volumes drop below 90% effectiveness after only 4,000 gallons. This is an important consideration.

Iron and hydrogen sulfide are oxidized into insoluble matter and attach to the surface of the media. Heavy metals such as lead, mercury, copper, nickel, chromium, cadmium, aluminum, and other dissolved metals are removed from the water by the electrochemical process. They are attracted to the surface of the media, much like a magnet. The media inhibits bacterial growth throughout the entire unit. In fact, it has been shown to be reduced up to 90%, eliminating the need for silver, which is commonly used in carbon-only filters (silver is considered a pesticide by the EPA and, as such, must be registered with them). Is copper or zinc added to the water in any significant amount? On 2.3 ppm chlorinated water, <0.05 mg/l copper and only 0.46 mg/l zinc were measured. The EPA aesthetic levels are 1.0 mg/l for copper and 5.0 mg/l for zinc. Both zinc and copper are essential minerals for good health - the FDA recommends a daily intake of 15 mg of zinc and 2 mg of copper.

Stage 4, water flows through ion exchange resins, reducing heavy metals such as lead, copper, aluminum, and water hardness.

Stage 5,
water flows through granulated activated carbon (GAC). GAC is universally recognized and widely used as an effective adsorbent for a wide variety of organic contaminants, such as chlorine (99.9%), chemicals linked to cancer (THM's, benzene) pesticides, herbicides, insecticides, volatile organic compounds (VOC's), PCB's, MTBE's and hundreds of other chemical contaminants that may be present in water causing bad taste and odors in your drinking water.

Carbon is extremely porous and provides a large surface area for contaminants to collect. Carbon-only filters must also use their capacity for chlorine removal, resulting in a shortened life. They also may use a bituminous coal carbon, which is good at removing chlorine, but not as effective at removing chemicals. We use a high-grade coconut shell carbon that is most effective at removing chemicals. Coconut shell carbon provides a significantly higher volume of micro-pores than either coal, wood or lignite based carbon. As a result, it is more effective than other carbon types in removing trihalomethanes (THM's) and other chemicals from municipally supplied water. Since our REDOX media removes the chlorine before it reaches the carbon, the carbon capacity is not wasted on chlorine and is free to concentrate more effectively on organic contaminants.

In stage 6,
water flows through another one-micron filtration pad for further reduction of undesirable particles. The end result is a great reduction or total elimination of a wide variety of contaminants.

CRYSTAL QUEST 6 stages filtration cartridge Specification
CRYSTAL QUEST 6 stages filtration cartridge - one-micron filter pad, ERA-6500, ERA-9500, GAC, ion exchange resin, and another one-micron pad. Removes hundreds of contaminants* from your drinking water. Used for low flow such as countertop and undersink. Read more details of this filter's 6 stage filtration capacity. Here is a list of contaminants removed.

CRYSTAL QUEST 6 stages filtration cartridge Specification

Capacity (<100 ppm hardness):

10,000 Gallons *

Design flow rate

1 to 1.5 GPM

Maximum temperature:

100°F (38°C)

Minimum temperature:

40°F (5°C)

Maximum pressure:

125 PSI (8.6 bar)

Minimum pressure:

20 PSI (1.4 bar)

Filter Cartridge Dimensions:

Hight 9.78" Diameter 3"

It can be easily back washed. Semi annually back washing of the unit not only ensures balanced filtration and eliminates the potential for channeling, but also back-flushes the unit.

Multi-Stage Replacement Cartridge Filter

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International Shipping Information

 Multi-Stage Replacement Cartridge Filter

You can select other replacement cartridge filters here

Free Shipping to the 48 lower States for orders over $100.00

* Filtration capacities are based on water quality.

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