SMART Disposable Under Sink Water Filter System - Under Sink Water Filters - Crystal Quest
SMART Disposable Under Sink Water Filter System - Under Sink Water Filters - Crystal Quest
Classic Under Sink Water Filter System - Under Sink Water Filters - Crystal Quest
SMART Disposable Under Sink Water Filter System - Under Sink Water Filters - Crystal Quest
SMART Disposable Under Sink Water Filter System - Under Sink Water Filters - Crystal Quest
Classic Under Sink Water Filter System - Under Sink Water Filters - Crystal Quest
Under sink water filterSKU CQE-US-00300

Classic Under Sink Water Filter System

$169.00

5.0 10 reviews

The SMART Classic Under Sink Water Filter System by Crystal Quest is designed to provide a convenient and effective solution for purifying tap water. It operates through six stages of filtration, ensuring the elimination of various impurities to offer great taste and pureness. The unique design allows for a substantial amount of filtration media enabling more contact time with the water. More contact time means better filtration. This system is not only quick and easy to install but also attractive and convenient for any household. With a capacity to filter up to 30,000 gallons depending on the chosen model, it's an eco-friendly, BPA-free, and ISO-certified product made in the USA. The system is available with different connection types and filtration capacities. Whether for drinking, cooking, or other household needs, this under-sink water filter system emphasizes health, sustainability, and quality.

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Capacity, Filters 10000 gallons Multistage PLUS
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Made in USA

Shipping

Free shipping on residential orders over $150 within the lower 48 US states.

Filters, cartridges and other small items often ship within 1 business day when ordered before the carrier pickup cutoff, typically around 2:00 PM Eastern. Standard residential systems are often processed within 1 to 2 business days. Whole house, custom and specialty systems are typically processed within 3 business days, and generally no more than 5.

Standard shipping typically delivers within 3 to 5 business days after your order ships. Large systems that ship by freight can take longer and may need a delivery appointment. Expedited 1-day and 2-day shipping is available for eligible products.

How long does shipping take?
30-day returns

Returns are accepted within 30 days of delivery when:

  • The item is new and unused, in its original packaging, with no damaged or missing parts.
  • You ask us for a Return Merchandise Authorization (RMA) number before you send it back.
  • You pay for return shipping. Shipping, handling and restocking fees apply.

Filter cartridges, membranes, reverse osmosis systems, custom or special orders and commercial products cannot be returned.

Read the full return policy
Lifetime support

Our team answers questions about products, orders, installation, troubleshooting and replacement parts.

Phone: 770-951-5600 or (800) 934-0051

Email: help@crystalquest.com. We reply within 24 to 36 hours.

Live chat during business hours

Hours: Monday to Friday, 9:00 AM to 5:00 PM Eastern. We observe U.S. federal holidays.

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The SMART Classic Under Sink Water Filter System by Crystal Quest is designed to provide a convenient and effective solution for purifying tap water. It operates through six stages of filtration, ensuring the elimination of various impurities to offer great taste and pureness. The unique design allows for a substantial amount of filtration media enabling more contact time with the water. More contact time means better filtration. This system is not only quick and easy to install but also attractive and convenient for any household. With a capacity to filter up to 30,000 gallons depending on the chosen model, it's an eco-friendly, BPA-free, and ISO-certified product made in the USA. The system is available with different connection types and filtration capacities. Whether for drinking, cooking, or other household needs, this under-sink water filter system emphasizes health, sustainability, and quality.

Water travels through 6 stages of filtration:

Crystal Quest® SMART Disposable Under Sink Water Filter System eliminates the impurities of tap water to offer great taste and pureness. The perfect solution for any household, it is quick and easy to install and use, attractive, convenient, and effectively removes many contaminants from water.

This solid state water filter uses the latest technologies that blend the adsorption capabilities of coconut shell activated carbon with Eagle Redox Alloy® and more.

  • The unique design allows for a substantial amount of filtration media enabling more contact time with the water. More contact time means better filtration.
  • It can be easily back washed. Semi-annually backwashing of the unit not only ensures balanced filtration and eliminates the potential for channeling, but also back-flushes the unit.
  • Installs neatly under the sink. Comes with an attractive faucet and all necessary installation hardware.
  • Designed in an attractive white housing, conveniently provides 10,000 gallons of water. (1-3 years, or when the flow of water will automatically either stop or slow down greatly.) 
  • Please note: When considering installation, if current under sink plumbing is hard copper tubing the saddle valve would be used; for flex tubing the T-valve would be required. While ordering a prompt will require that an installation valve be specified in order to progress through the order entry screen. Also note that the pre-filtration filter located on the countertop page of the website is not available for under sink models.

WATER TRAVELS THROUGH 6 STAGES OF FILTRATION

Stage 1: Water flows through a one-micron filter pad which removes suspended particles such as silt, sediment, cyst (Giardia, Cryptosporidium), sand, rust, dirt, and other undissolved matter.

Stage 2: Water passes through coconut shell granulated activated carbon (Arsenic-Free GAC™). GAC is universally recognized and regularly used as an effective adsorbent for removing a wide variety of organic contaminants, bad taste and odors from drinking water.

Stage 3: Water flows through the ion exchange resin, reducing heavy metals such as lead, copper, aluminum, and water hardness. Ceramic and Tourmaline balls to enhance the water and maintain a more alkaline pH. 

Stage 4 & 5: 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.)  Chlorine and chloramines are instantaneously and almost inexhaustibly oxidized. To read about the ERA® Oxidation/Reduction Process, click here.

Stage 6: Water flows through another one-micron filtration pad for further reduction of undesirable particles. The end result is a great reduction or the total elimination of a wide variety of contaminants. To read about how GAC's work, click here. 

*An Air Gap/three-way faucet should be installed to prevent pressure build-up to avoid leaks