Single Lead Under Sink Water Filter System - Under Sink Water Filters - Crystal Quest
Double Lead Under Sink Water Filter System - Under Sink Water Filters - Crystal Quest
Lead Under Sink Water Filter System, triple white housings on a wall bracket with chrome faucet
Single Lead Under Sink Water Filter System - Under Sink Water Filters - Crystal Quest
Double Lead Under Sink Water Filter System - Under Sink Water Filters - Crystal Quest
Lead Under Sink Water Filter System, triple white housings on a wall bracket with chrome faucet
Under Sink Water FiltersSKU CQE-US-00335

Lead Under Sink Water Filter System

5.0 (2 reviews)

$182.90

The Lead Under Sink Water Filter System by Crystal Quest is a vital solution for those seeking clean and lead-free drinking water. This system is designed with a Lead Removal Water Filter Cartridge and an optional Smart Cartridge or Carbon Block Filter, ensuring the removal of lead and other contaminants. Available in Single, Double, and Triple configurations, it offers on-demand access to purified water under any sink. Dependable and built to last, this product serves as an essential tool for safeguarding health and enhancing the quality of water in residential settings.

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Configuration, Single
Single Lead Under Sink Water Filter System - Under Sink Water Filters - Crystal Quest

What’s included?

Included & installation

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Made in USA

Shipping

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

Order by 3:00 PM Eastern on a business day and most filters, cartridges and smaller items leave our facility that same day. Standard residential systems ship within 1 to 2 business days, and whole house, custom and specialty systems typically within 3. So far in 2026, 95% of our orders have shipped within one business day and 99% within five (based on an internal review of our order records).

Once shipped, standard delivery typically arrives in 3 days to the Southeast, Northeast and Southwest, and in 4 days to the Midwest and the West. Need it sooner? UPS 2nd Day Air and Next Day Air are available at checkout for eligible products. Systems that ship by freight can take longer and may need a delivery appointment.

Shipping details and exclusions
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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Benefits

Recommended Leak Detector/Flood-Prevention Valve : Due to numerous unpredictable circumstances including installation errors, flood damage is subject to occur without a leak-detector valve. Our recommended leak detector/flood-prevention valve will allow the water system to be flood-proof.

Our Lead Under Sink Water Filter System reduces or removes contaminants such as chlorine, heavy metals, and lead from tap water to offer the freshest taste to you. This system is the perfect solution for any household. It is quick and easy to install and use, attractive, and convenient.

  • Installs neatly under the sink.
  • Comes with a beautiful faucet and all necessary installation hardware

    When considering installation, if the 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 is specified in order to progress through the order entry screen.


    Lead Water Filter Cartridge

    Water travels through a 1/2 micron Lead & Cyst removal Carbon Block Filter. Capacity: 6,000 gallons, depending on the detected level & ppb of influent water.

    SMART Water Filter Cartridge

    Water flows through a bed of media made of a special high-purity alloy blend of two dissimilar metals - copper and zinc (ERA-6500, ERA-9500). ERA-6500 and ERA-9500 are major advancements in water treatment technology that works on the electrochemical and spontaneous-oxidation-reduction (Eagle Redox Alloy®) principles. Chlorine is instantaneously and almost inexhaustibly oxidized.

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

    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, 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.

    All Crystal Quest® GAC is a mixed blend of coconut shell and catalytic GAC to address both chlorine, chloramines and these byproducts.

    Carbon Block Water Filter Cartridge

    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 microns including sediment, silt, sand, and dirt.