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17 Stage Reverse Osmosis System Under Sink Water Filter

SKU CQE-RO-00112
$560.85
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Get Cleaner Water with the Crystal Quest Thunder 4000M 17-Stage RO System

The Crystal Quest Reverse Osmosis Under Sink Water Filter series (4000M & 4000MP) is a powerful, multi-stage purification system built to deliver clean, safe, and great-tasting water straight from your kitchen sink.

Using advanced reverse osmosis technology with enhanced multi-media filtration, these systems remove up to 99% of contaminants—including heavy metals, chlorine, fluoride, lead, bacteria, viruses, and harmful chemicals—so your household always enjoys fresh, pure water.

  • 4000M Standard Model – A high-performance under-sink system designed for homes with stable water pressure.
  • 4000MP Pump Model – Equipped with a built-in booster pump, making it the ideal choice for low-pressure households or commercial use, ensuring consistent flow and maximum efficiency.

Features

  • Produces up to 50 gallons per day
  • Advanced 6-stage filtration cartridge
  • Ultrafiltration (UF) for added purification
  • Ultraviolet (UV) purification to safeguard against microorganisms
  • Optional leak detector/flood prevention valve strongly recommended for added protection against water damage

Whether you choose the 4000M or the 4000MP, Crystal Quest delivers a reliable, high-performance under-sink solution that guarantees safe, pure water for everyday use.



Water Travels Through 17 Stages of Filtration

STAGE 1 - Water travels through a 5 micron solid carbon cartridge for removing volatile organic carbon compounds (VOC's), insecticides, pesticides and industrial solvents and traps particles larger than 5 micron including sediment, silt, sand and dirt. It also helps to extend the life of the system.

STAGE 2 - Water passes through a 0.020 micron Ultrafiltration (UF) membrane. Ultrafiltration (UF) is an important purification technology used for the production of high-purity water. UF is effective for the removal of colloids, proteins, bacteria, viruses, parasites, protozoa and pyrogens (e.g., gram-negative bacterial endotoxins), other organic molecules larger than 0.020 micron, and most other water contaminants known today. 

STAGE 3 - Water flows through pre 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 undissolved matter.

STAGE 4 - Water passes 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, 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, bad taste, and odors from your drinking water. 

STAGE 5 - Water flows through the ion exchange resin, reducing heavy metals such as lead, copper, aluminum, and water hardness.

STAGE 6 & 7 - Water flows through 2 beds of Eagle Redox Alloy®(Oxidation/reduction process) media made of a special high-purity alloy blend of two dissimilar metals - copper and zinc. Representing a new and unique way of water processing medium which by its natural process of electrochemical oxidation/reduction and adsorption action reduces and/or removes many unwanted contaminants from water. It is a major advancement in water treatment technology that works on the electro-chemical and spontaneous-oxidation-reduction (Eagle Redox Alloy®) principles. Chlorine is instantaneously and almost inexhaustibly oxidized.

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 natural process of electrochemical process. They are attracted to the surface of the media, much like a magnet. The media inhibits bacterial growth throughout the entire unit. 

STAGE 8 - Water flows through another one-micron filtration pad for further reduction of undesirable particles. The end result is a great reduction or elimination of a wide variety of contaminants.

STAGE 9 - Water passes through a CRYSTAL QUEST® reverse osmosis membrane, which removes and filters particles as small as 1/10,000 of a micron as most inorganic chemicals (such as salts, metals, minerals) most microorganisms including cryptosporidium and giardia, and most inorganic contaminants. 

STAGE 10 & 15 - Water flows through another 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 undissolved matter.

STAGE 11 & 12 - Water flows through another bed of media made of a special high-purity alloy blend of two dissimilar metals - copper and zinc. it 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.

STAGE 13 - Water flows through another ion exchange resin, reducing heavy metals such as lead, copper, aluminum, and water hardness.

STAGE 14 - Water passes through granulated activated carbon (GAC).

STAGE 16 - Water passes through an Ultraviolet Water Sterilizer System manufactured with axial flow reactors in 304 stainless steel. The hard glass germicidal lamps provide an economical way of treating water requiring a 99.99% reduction of bacteria and virus and protozoa. This process is accomplished without adding any harmful chemicals to your drinking water. CRYSTAL QUEST® Ultraviolet Water Sterilizer System is the most ecological way of treating your water.

STAGE 17 - Water travels through a 0.20 micron Ultrafiltration (UF) membrane. Ultrafiltration. UF is effective for the removal of colloids, proteins, bacteria, viruses, parasites, protozoa and pyrogens (e.g., gram-negative bacterial endotoxins), other organic molecules larger than 0.20 micron, and most other water contaminants known today.

Carbon Block Filter Cartridge

SKU CQE-RC-04000

Crystal Quest® 5-Micron Carbon Block Cartridges are manufactured from an acid-washed coconut-carbon based formulation. Better tasting water is produced as carbon is used to its maximum advantage in minimizing pH levels while maintaining a low-pressure drop.

SMART Filter Cartridge

SKU: CQE-RC-04002

This cartridge utilizes the latest technologies in the water filtration industry, allowing them to provide you with healthy great-tasting water. Each filter cartridge has multi-levels or stages of filtration. These stages include micron filter pads, Granulated Activated carbon (GAC), Catalytic Carbon GAC, Ion Exchange resin, Eagle Redox Alloy® 6500, Eagle Redox Alloy® 9500, Ceramic and Tourmaline balls. The multistage design allows for the removal of many different contaminants from one cartridge.

(UF) Water Filter Membrane

SKU: CQE-RC-04055

Ultrafiltration (UF) is an important purification technology used for the production of high-purity water. UF is effective for the removal of colloids, proteins, bacteria, viruses, parasites protozoa, and pyrogens, (e.g., gram-negative bacterial endotoxins), and other organic molecules larger than 0.01 Micron size and most other water contaminations known today. Also removes pesticides and herbicides, as well as the hardness in water and some salt.

50 GPD RO Membrane

SKU: CQE-RC-04041

Reverse Osmosis membranes remove 99.9% of contaminants and unwanted particle sizes as small as 1/1000 of a micron. They do this by forcing untreated water through a semi-permeable membrane. The pressure forces the water in the reverse direction to the flow in normal osmosis. Some contaminants removed are lead, sodium, cyanide, ammonium, mercury, bromide, cadmium, trivalent chromium, radium, magnesium, fluoride, nitrates and many more.

Inline SMART Filter Cartridge

SKU: CQE-RC-04040

Applications

  • Pre and post-point-of-use reverse osmosis
  • Ice maker and refrigerator 
  • Water cooler/fountain

Crystal Quest Reverse Osmosis Under Sink Water Filter - 4000M

The Crystal Quest Reverse Osmosis Under Sink Water Filter - 4000M is a powerful, multi-stage water filtration system that ensures high-quality, clean, and safe drinking water right from your kitchen sink.

Featuring advanced reverse osmosis technology, the 4000M model effectively eliminates up to 99% of contaminants, including heavy metals, chlorine, fluoride, lead, bacteria, viruses, and harmful chemicals, delivering fresh and pure water for daily consumption.

Features

Warning: Although a leak detector/flood prevention valve is optional with your purchase, it is highly recommended to avoid property damage. Due to numerous unpredictable circumstances including installation errors, flood-damage is subject to occur without a leak-detector valve. Including a leak-detector will allow the water system to be flood-proof.

Water Travels Through 17 Stages of Filtration

STAGE 1 - Water travels through a 5 micron solid carbon cartridge for removing volatile organic carbon compounds (VOC's), insecticides, pesticides and industrial solvents and traps particles larger than 5 micron including sediment, silt, sand and dirt. It also helps to extend the life of the system.

STAGE 2 - Water passes through a 0.020 micron Ultrafiltration (UF) membrane. Ultrafiltration (UF) is an important purification technology used for the production of high-purity water. UF is effective for the removal of colloids, proteins, bacteria, viruses, parasites, protozoa and pyrogens (e.g., gram-negative bacterial endotoxins), other organic molecules larger than 0.020 micron, and most other water contaminants known today.

STAGE 3 - Water flows through pre 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 undissolved matter.

STAGE 4 - Water passes 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, 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, bad taste, and odors from your drinking water.

STAGE 5 - Water flows through the ion exchange resin, reducing heavy metals such as lead, copper, aluminum, and water hardness.

STAGE 6 & 7 - Water flows through 2 beds of Eagle Redox Alloy®(Oxidation/reduction process) media made of a special high-purity alloy blend of two dissimilar metals - copper and zinc. Representing a new and unique way of water processing medium which by its natural process of electrochemical oxidation/reduction and adsorption action reduces and/or removes many unwanted contaminants from water. It is a major advancement in water treatment technology that works on the electro-chemical and spontaneous-oxidation-reduction (Eagle Redox Alloy®) principles. Chlorine is instantaneously and almost inexhaustibly oxidized.

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 natural process of electrochemical process. They are attracted to the surface of the media, much like a magnet. The media inhibits bacterial growth throughout the entire unit.

STAGE 8 - Water flows through another one-micron filtration pad for further reduction of undesirable particles. The end result is a great reduction or elimination of a wide variety of contaminants.

STAGE 9 - Water passes through a CRYSTAL QUEST® reverse osmosis membrane, which removes and filters particles as small as 1/10,000 of a micron as most inorganic chemicals (such as salts, metals, minerals) most microorganisms including cryptosporidium and giardia, and most inorganic contaminants.

STAGE 10 & 15 - Water flows through another 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 undissolved matter.

STAGE 11 & 12 - Water flows through another bed of media made of a special high-purity alloy blend of two dissimilar metals - copper and zinc. it 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.

STAGE 13 - Water flows through another ion exchange resin, reducing heavy metals such as lead, copper, aluminum, and water hardness.

STAGE 14 - Water passes through granulated activated carbon (GAC).

STAGE 16 - Water passes through an Ultraviolet Water Sterilizer System manufactured with axial flow reactors in 304 stainless steel. The hard glass germicidal lamps provide an economical way of treating water requiring a 99.99% reduction of bacteria and virus and protozoa. This process is accomplished without adding any harmful chemicals to your drinking water. CRYSTAL QUEST® Ultraviolet Water Sterilizer System is the most ecological way of treating your water.

STAGE 17 - Water travels through a 0.20 micron Ultrafiltration (UF) membrane. Ultrafiltration. UF is effective for the removal of colloids, proteins, bacteria, viruses, parasites, protozoa and pyrogens (e.g., gram-negative bacterial endotoxins), other organic molecules larger than 0.20 micron, and most other water contaminants known today.

Carbon Block Filter Cartridge

SKU CQE-RC-04000

Crystal Quest® 5-Micron Carbon Block Cartridges are manufactured from an acid-washed coconut-carbon based formulation. Better tasting water is produced as carbon is used to its maximum advantage in minimizing pH levels while maintaining a low-pressure drop.

SMART Filter Cartridge

SKU: CQE-RC-04002

This cartridge utilizes the latest technologies in the water filtration industry, allowing them to provide you with healthy great-tasting water. Each filter cartridge has multi-levels or stages of filtration. These stages include micron filter pads, Granulated Activated carbon (GAC), Catalytic Carbon GAC, Ion Exchange resin, Eagle Redox Alloy® 6500, Eagle Redox Alloy® 9500, Ceramic and Tourmaline balls. The multistage design allows for the removal of many different contaminants from one cartridge.

(UF) Water Filter Membrane

SKU: CQE-RC-04055

Ultrafiltration (UF) is an important purification technology used for the production of high-purity water. UF is effective for the removal of colloids, proteins, bacteria, viruses, parasites protozoa, and pyrogens, (e.g., gram-negative bacterial endotoxins), and other organic molecules larger than 0.01 Micron size and most other water contaminations known today. Also removes pesticides and herbicides, as well as the hardness in water and some salt.

50 GPD RO Membrane

SKU: CQE-RC-04041

Reverse Osmosis membranes remove 99.9% of contaminants and unwanted particle sizes as small as 1/1000 of a micron. They do this by forcing untreated water through a semi-permeable membrane. The pressure forces the water in the reverse direction to the flow in normal osmosis. Some contaminants removed are lead, sodium, cyanide, ammonium, mercury, bromide, cadmium, trivalent chromium, radium, magnesium, fluoride, nitrates and many more.

Inline SMART Filter Cartridge

SKU: CQE-RC-04040

Please Note The Following:

  • When considering installation of an undersink unit: if current under sink plumbing is hard copper tubing the saddle valve would be used; for flex tubing the T-valve would be required. During the ordering process you will have a choice of which installation valve you prefer.
  • The influent waters psi will have a direct effect on GPD or gallon per day production. The RO is designed to work in a psi range from 35-60 with 60 being optimum. If your water pressure is low or you have a high TDS please consider a system manufactured with a pump.
  • Units are manufactured standard with 110v electrical outlet but are also available in 220v if requested.

Reverse Osmosis Under Sink Water Filter – 4000M & 4000MP Technical Specifications

System Unit 4000M 4000MP
Unit Dimensions 16"L x 8"W x 24"H 16"L x 8"W x 27"H
Holding Tank Dimensions 18"H x 11"D 18"H x 11"D


Reverse Osmosis Under Sink Water Filter – 4000M & 4000MP: Replacement Cartridges

Product Name SKU
Carbon Block Filter Cartridge (2-7/8“x9-3/4”) CQE-RC-04000
SMART Filter Cartridge (2-7/8“x9-3/4”) CQE-RC-04002
Ultrafiltration (UF) Water Filter Membrane (2-7/8“x9-3/4”) CQE-RC-04055
Ultrafiltration (UF) Water Filter Membrane (Capsule) CQE-RC-04059
50 GPD RO Membrane CQE-RC-04041
Inline SMART Filter Cartridge CQE-RC-04040


Reverse Osmosis Under Sink Water Filter – 4000M & 4000MP: Optional Filters

Product Name SKU
75 GPD RO Membrane CQE-RC-04063
100 GPD RO Membrane CQE-RC-04064
Arsenic CQE-RC-04062
Nitrate CQE-RC-04061
Fluoride CQE-RC-04060
Remineralizer CQE-RC-04054

17 Stage Reverse Osmosis System Under Sink Water Filter Product Manual


Seeking Expert Advice?

Feel free to contact us via phone or email for further assistance.

Phone: 888-852-0601

Email: sales@purehomedirect.com

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