2-Stage Under Sink Advanced Water Filtration System

Model#: DWQ3502020
2-Stage Under Sink Advanced Water Filtration System
Model#: DWQ3502020
$21900
List Price: $365.00
Save $146.00 (40%)

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Compatible Replacement Filters

Finish

Sediment & Advanced Carbon Filter Replacement Pack

Replacement filter pack for the Delta® Clarifi™ Two-Stage Advanced Under Sink Water Filtration System. Certified by the IAPMO R&T Lab to reduce 72 con

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PRODUCT FEATURES
Upgrade your drinking water by reducing 72 contaminants with the Delta® Clarifi™ Two-Stage Advanced Under Sink Water Filtration System. The Clarifi™ system is tested and certified by the IAPMO R&T Lab to reduce chlorine, chloramines, PFAS, lead, and more. The compact design delivers easy-to-use in-home filtration with quick and simple filter changes, a digital display and long-life filters. You can install with confidence, knowing Delta products are backed by our warranty and highly-trained customer support.
  • CERTIFIED CLEANER: Reduces 72 contaminants including lead, PFOA/PFOS, chlorine, chloramine and cysts*
  • 3RD PARTY TESTED: Certified by IAPMO R&T Lab against NSF standards 42, 53, 372 and 401
  • EASY, DIY MAINTENANCE: Tool-free filter changes take less than a minute to replace each filter with a quick twist and lock mechanism
  • LESS PLASTIC WASTE: Saves up to 5,000 water bottles per year per 1-year filter life
  • AUDIBLE ALERTS: Audible alerts notify low battery and when a filter needs to be changed
  • FILTERED WATER MADE EASY: Filter lives are synchronized so you can quickly and easily replace them at the same time
  • SMALL-SPACE FRIENDLY: Compact design takes up less room under sink
  • DIGITAL DISPLAY: LCD display monitors and reports the status of your filters and battery life
  • High filtration capacity provides approximately one year of filtration (or 1100 gallons, whichever comes first).
  • Pairs with a Delta® Beverage Faucet, available in a variety of styles and finishes
  • For cold water installation only
  • Battery-powered system does not require connection to outlet/electricity
  • No need to shut off water during filter changes
  • Find more information in the included user guide, M&I and Delta Faucet’s YouTube
  • Installation requires beverage faucet and cold water supply stop.
  • Kit includes: manifold, sediment filter cartridge, advanced carbon filter cartridge, tee adapter, ¼’ push connect elbow, battery box, 3 AA batteries and hoses.
  • *CAUTION: Do not use with water that is microbiologically unsafe or unknown quality without adequate disinfection before or after system.
Special Information
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California Prop 65 WARNING
Special Information
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California Prop 65 WARNING
Documents & Specs
Installation Information
Number of Filters Included :
2
Max. Feed Water Flow (gallons per minute) :
0.63
Max. Feed Water Temperature (°F) :
100
Max. Filtered Water Flow (gallons per minute) :
0.42
Min. Feed Water Pressure (psi) :
20
Min. Feed Water Temperature (°F) :
41
Daily Production Rate (gallons per day) :
600
Overall Height (in.) :
15-1/2
Valve Type:
NA

INSTALLATION SUPPORT

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REVIEWS
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Q&A

FREQUENTLY ASKED QUESTIONS

How should I decide which filter system to use?

Choosing the right water filter depends on your specific needs, water quality, budget, and installation preferences. Our two-stage system requires a dedicated beverage faucet and filters more contaminants, while the single stage system connects directly to your existing faucet with minimal effort.

Start by identifying the contaminants in your water. Check your local water utility’s Consumer Confidence Report (CCR) using our Water Quality Look-Up Tool or test your water with a DIY kit or professional service. Choose a filter that fits your installation needs and is certified to address the contaminants you’re targeting.

Under sink filters strike a balance of convenience, effectiveness, and affordability for most households, especially if your focus is cleaner drinking and cooking water.

Is the filter system hard to install?

The Clarifi system is designed for simple, DIY installation and comes with detailed instructions through the user guide and installation videos. However, the difficulty can depend on your DIY skills, tools and existing plumbing setup.

Tools You Might Need:

  • Adjustable wrench
  • Screwdriver
  • Drill (if a faucet hole is needed)

Note that this system can only be installed to a cold-water line. Running hot water through these systems will cause damage. Any compatible beverage faucet certified for use with water quality systems can work with this system. However, for optimal performance, we recommend using a Delta® Beverage Faucet, available in a variety of styles and finishes.

What do I need to know about replacing the filter cartridges?

The filters will need to be replaced about every 1 year or after it’s filtered 1,100 gallons, whichever comes first. The system will use audible alerts and the LCD digital display to notify you when it’s time to replace the filter.

You can order the replacement filters through our website or other vendors. Other brand filters are not compatible with the Delta system.

We designed the filters to be quick and easy to replace. Simply remove the old cartridge and install the new one with simple twist and lock quarter turn mechanism.

After you’re done, the filter cartridges can be thrown away. They cannot be recycled but are not hazardous waste, so standard disposal is okay.

How long do the batteries last? Is there an AC adapter I can use?

The system is designed to only be used with AA batteries. AC power cannot be used.

The 3 included AA batteries last approximately 2 years with a multiyear battery life.

Why do I need to flush the system for 10 minutes after install?

The flush primes the filter, ensuring you don’t drink gritty or off-tasting water later and the filter is saturated for optimal performance. Until the flush is done, the water might not meet the taste or clarity you expect from a new filter.

The filters are made of food-grade, nontoxic materials, so the flush water is not dangerous. However, we recommend caution when trying to re-use this water by watering plants as the carbon particles may affect sensitive plants.

How do I know the filter is working?

There are a few signs you can look for to tell if your new filter is working.

  1. Improved taste and odor: To test this, you can sample regular tap water from a separate faucet and do a side-by-side comparison against the filtered water.
  2. Clean water appearance: No visible particles, cloudiness or discoloration should be present.
  3. Check your lines for debris or your home’s’ water quality. The more contaminated your water, you may need to replace filters more frequently.
  4. Effective chlorine reduction: You can use a chlorine test strip to confirm the carbon filter is working.
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PART LIST

PART LIST

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Clarifi™

Clarifi™ Mounting Hardware for DWQ3501510 and DWQ3502020

List Price: $6.40
Online Price: $5.12
Free Ground Shipping All Orders $49+

RP104135

Image-RP104138

Clarifi™

Clarifi™ Tee adapter for DWQ3502020

List Price: $27.80
Online Price: $22.24
Free Ground Shipping All Orders $49+

RP104138

Image-RP104137

Clarifi™

Clarifi™ Tubing Kit for DWQ3502020

List Price: $7.55
Online Price: $6.04
Free Ground Shipping All Orders $49+

RP104137

Image-RP104134

Clarifi™

Clarifi™ Battery Box w/ mounting tape for DWQ3501510 and DWQ3502020

List Price: $18.70
Online Price: $14.96
Free Ground Shipping All Orders $49+

RP104134

Image-RP104140

Clarifi™

Clarifi™ ¼" to ¼" quick connect Adapter for DWQ3502020

List Price: $10.10
Online Price: $8.08
Free Ground Shipping All Orders $49+

RP104140

Image-RP104139

Clarifi™

Clarifi™ Ferrule for DWQ3502020

List Price: $4.85
Online Price: $3.88
Free Ground Shipping All Orders $49+

RP104139

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