Clarifi™
View Clarifi™ Collection

Reverse Osmosis Remineralization Cartridge

Model#: DWQ300300
Add to Favorites
Find local Delta® installers.
Clarifi™
View Clarifi™ Collection
Reverse Osmosis Remineralization Cartridge
Model#: DWQ300300
$6990
List Price: $99.90
Save $30.00 (30%)

Buy on Deltafaucet.com to Receive:

  • Automatic Product Registration for Warranty and Faster Service
  • Hassle-Free 90 Days Returns
Free Ground Shipping All Orders $49+

Add to Favorites
Find local Delta® installers.
PRODUCT FEATURES
Customize your Clarifi™ Reverse Osmosis drinking experience with an optional remineralizer cartridge designed for better taste and enhanced pH. The Clarifi™ remineralizer cartridge adds those good-for-you minerals, like the electrolytes, calcium and magnesium, back into your filtered drinking water. You can install with confidence, knowing the Delta® Clarifi™ Tankless Reverse Osmosis System is backed by our warranty and highly-trained, live customer support.
  • ENHANCED TASTE AND PH: Replaces taste-enhancing minerals removed during the normal RO process.
  • GOOD-FOR-YOU MINERALS: Adds minerals like electrolytes, calcium and magnesium back into your filtered drinking water.
  • MULTI-STAGE FILTRATION: Offers a 7th Stage of filtration, to be used only with Clarifi™ Tankless Reverse Osmosis System (DWQ1001012)
  • EASY, DIY MAINTENANCE: Carbon and RO filters and optional remineralizer cartridge have a two-year lifespan so you can replace them at the same time quickly and easily - it takes less than a minute to replace each.
  • VIDEO TUTORIALS: Find more information in the included user guide, M&I, and Delta Faucet’s YouTube.
  • LIVE CUSTOMER SUPPORT: Backed by Delta Faucet's warranty and highly-trained, live customer support
  • For cold water use only
  • In-line installation
  • Includes two 1/4" to 1/4" push to connect adapters for quick installation
Documents & Specs
Product Support, Repair Parts & Technical Specifications
View Quick Start Guide
View Technical Specifications & Performance Data Sheet
View Maintenance & Installation Sheet
Register Product
Installation Information
Number of Filters Included :
1
Filter Life Months :
24
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
Max. Feed Water Pressure (psi) :
87
Daily Production Rate (gallons per day) :
600
Overall Height (in.) :
2-3/4
Valve Type:
NA

INSTALLATION SUPPORT

Need help with installation? Find local Delta® installers. Get Quotes. Read reviews.

GO
Enter Valid Zip.
REVIEWS
  • bvseo_sdk, dw_cartridge, 18.2.0, p_sdk_3.2.0
  • CLOUD, getReviews, 87ms
  • reviews, product
  • bvseo-msg: Unsuccessful GET. status = 'ERROR', msg = 'Not Found.'; Unsuccessful GET. status = 'ERROR', msg = 'Not Found.';
Q&A

The filtration ratio is listed as 2:1, but the efficiency percentage is listed as 78%. These numbers are not equal. What is the true efficiency rating?

Asked by: emily
Hi, Thank you for your question. The Clarifi system has a 2:1 filtered-to-waste ratio. Compared to a tanked system with an average 1:4, it is 87.5% more efficient. Please reach out with any additional questions! Best Regards, Themar Digital Communications Specialist
Answered by: Themar
Date published: 2025-12-11

Can I install the unit in my basement to feed multiple  locations in my home.

Asked by: Jay dog
Hello Customer! Thank you for your question and we are happy to help. This cannot be installed to feed multiple locations in the home. With any further questions or concerns, please do not hesitate to reach out to us again. Best Regards, Carrie
Answered by: Carrie
Date published: 2025-06-07

Is there a serial number listed on the back of the tankless unit? (I'd rather not try and pull it out from where my builder put it unless I know there's one listed; it's kinda heavy for me)

Asked by: CR19
Hi Valued Customer, Thank you for your question. Yes, the model number is on the back of the Tankless Under Sink 6-Stage Reverse Osmosis System. Please feel free to contact us directly for technical information at 800-345-3358. We are available Monday through Friday from 8 a.m. to 8 p.m. and Saturdays from 9 a.m. to 6 p.m. Eastern Standard Time. Thank you for being a loyal Delta Faucet customer. Best Regards, Themar Digital Communications Specialist (800) 345-3358
Answered by: Themar
Date published: 2025-09-30

How is a 78% system recovery calculated? What doe that mean?

Asked by: Willy
Hi Willy, Thank you for your question about the Delta Faucet DWQ1001012. The recovery rate is measured by comparing the amount of water entering the system and the amount of filtered or clean water. Please reach out with any additional questions! Best Regards, Bryan Digital Communications Specialist
Answered by: Delta
Date published: 2025-04-23

What is the size on the hole needed on the counter top? For the faucet on your 6-Stage RO Water Filter

Asked by: Maxi
Hi Maxi, Thank you for your question about the Delta Faucet Reverse Osmosis System model DWQ1001012. The hole size for our beverage faucets should be between 1 1/4" and 1 1/2". Please reach out with any additional questions! Best Regards, Bryan Digital Communications Specialist
Answered by: Delta
Date published: 2025-01-09

How long do the filters typically last? I appreciate it's based on usage so how many gallons before replacing.

Asked by: Mikel
Hi Mikel, Thank you for your question about the Delta Faucet model DWQ1001012. Reverse Osmosis Filter Recommended Lifespan is 1,320 gallons or 2 years, whichever comes first. Please reach out with any additional questions! Best Regards, Bryan Digital Communications Specialist
Answered by: Delta
Date published: 2025-06-23

Can it work without power? I don’t have electricity under my sink

Asked by: Dana
Hi Valued Customer, Thank you for your question regarding our Delta Faucet DWQ1001012. Please accept our sincere apology for the inconvenience you are experiencing. We will be happy to assist you in resolving this issue as quickly as possible. The Tankless Under Sink 6-Stage Reverse Osmosis System requires a 120VAC power supply outlet. Please feel free to contact us directly for technical information at 800-345-3358. We are available Monday through Friday from 8 a.m. to 8 p.m. and Saturdays from 9 a.m. to 6 p.m. Eastern Standard Time. Thank you for being a loyal Delta Faucet customer. Best Regards, Themar Digital Communications Specialist (800) 345-3358 customerservice@deltafaucet.com
Answered by: Themar
Date published: 2025-01-21

I will be installing in a vacation home where we will not be using the water over the winter / 6 months. Should the filters and membrane be removed? How should they be stored? I have heard wrapped tightly and in the refrigerator? Is that correct?

Asked by: Hard Well Water
Hello! Yes, store the membranes wet in a sealed container, submerged in a preservative solution (like RO water or specialized storage compound) to prevent mold, and keep them in a refrigerator. Please reach out with further questions! Best Regards, Tim Digital Communications Specialist
Answered by: Digital Specialist
Date published: 2026-05-07

Is this the filter cartridge that a new system comes with?

Asked by: Debbie
Hello! Thank you for contacting Delta Faucet Company! Yes, the DWQ300102 is used with our CLARIFI™ Tankless Reverse Osmosis Water Filtration System. We appreciate your inquiry. Please reach out directly if you have further questions! Best Regards, Kyra Digital Communications Specialist
Answered by: Delta
Date published: 2025-09-30

Hello! I had the Clarifi Tankless RO System installed in my new home with the intention to replace the beverage faucet with a different brand of faucet to match my main kitchen faucet, but the supply lines are different. Is there a conversion kit to buy?

Asked by: KB New Home
Hello! Thank you for contacting Delta Faucet Company! Our DWQ1001012 is recommended installation with a Delta Reverse Osmosis Beverage Faucet with integrated airgap. We cannot guarantee another manufacturers products will fit with ours. We do not have an adapter. We apologize for any inconvenience this may cause! We appreciate your inquiry. Please reach out directly if you have further questions! Best Regards, Kyra Digital Communications Specialist
Answered by: Delta
Date published: 2025-12-18

I live in Toledo, Ohio where Microcystin-producing algae get into the water supply. Does this system remove Microcystin from algae?

Asked by: ErieBob
Hi Valued Customer, Thank you for your question, please accept our sincere apology for the inconvenience you are experiencing. We will be happy to assist you in resolving this issue as quickly as possible. No, this does not remove algae. Please feel free to contact us directly for technical information at 800-345-3358. We are available Monday through Friday from 8 a.m. to 8 p.m. and Saturdays from 9 a.m. to 6 p.m. Eastern Standard Time. Thank you for being a loyal Delta Faucet customer. Best Regards, Themar Digital Communications Specialist (800) 345-3358 customerservice@deltafaucet.com
Answered by: Themar
Date published: 2025-04-08

Is it normal for the RO and CF filter lights (lifespan) to go purple at exactly the same time? I had to clear some debris out of the small drain line at the saddle on my main drain. It fixed my drain issue but both lights went purple immediately afterward

Asked by: Infinity93
Hi Infinity93, We’re very sorry to hear about your experience. Our team would like to help resolve this for you as quickly as possible, please reach out to us at 1-800-345-3358. Sincerely, Carrie Digital Communications Specialist
Answered by: Digital Specialist
Date published: 2026-05-11

Can I forego a separate faucet and instead use the cold water line to my regular Delta kitchen sink faucet?

Asked by: Brock
Hello! Thank you for contacting Delta Faucet Company! Yes, you can install an R/O system on just the cold water line to your kitchen faucet. We appreciate your inquiry. Please reach out directly if you have further questions! Best Regards, Kyra Digital Communications Specialist
Answered by: Delta
Date published: 2026-01-10

We installed this system. Where we love the taste, the noise is really high. We are curious if this is normal?

Asked by: sut2burns
I was just reading a review on amazon that gave helpful tips on installation to reduce noise. One of the things recommended was sorbothane vibration isolating feet.
Answered by: Hard Well Water
Date published: 2026-05-06

CAN I LOCATE IN BASEMENT BELOW KITCHED SINK

Asked by: mkelly
Hi mrkelly, Thank you for your question about the Delta Faucet model DWQ1001012. The RO unit may be installed no more than 1 floor below the faucet. Long runs should use larger tube sizes. See here for more information: https://support.deltafaucet.com/s/article/Installing-Reverse-Osmosis-in-the-Basement-or-Level-Below-the-Faucet Please reach out with any additional questions! Best Regards, Bryan Digital Communications Specialist
Answered by: Delta
Date published: 2025-01-29

How long can the cartridges be held in storage before use?

Asked by: Bob27
Hi Valued Customer, Thank you for your question, Please follow the steps on page 3 on the Maintenace and installation sheet. https://media.deltafaucet.com/MandI/115897%20Rev%20B.pdf Please feel free to contact us directly for technical information at 800-345-3358. We are available Monday through Friday from 8 a.m. to 8 p.m. and Saturdays from 9 a.m. to 6 p.m. Eastern Standard Time. Thank you for being a loyal Delta Faucet customer. Best Regards, Themar Digital Communications Specialist (800) 345-3358 customerservice@deltafaucet.com
Answered by: Themar
Date published: 2025-12-10

Why does it come with a prop 65 warning? Which components are carcogenic, to what degree given the intended use of the product, and do they come in contact with the water?

Asked by: Regaleaglebeagle
Hello Valued Customer, Thank you for contacting Delta Faucet Company! The label ensures that Delta Faucet Company is in compliance with the State of California’s Prop 65 law for warning label requirements. We are providing Prop 65 warning labels to inform consumers that the product contains chemicals on the State of California’s Prop 65 list - typically components of the brass used. The label does not mean that a product is unsafe. All Delta Faucet Company products meet or exceed the requirements of applicable product performance and safety industry standards, as well as the federal Safe Drinking Water Act. Products sold in states with different standards meet those standards. Our DWQ1001012 is rigorously tested by IAPMO R&T lab and certified by IAPMO to standards, meeting five NSF standards including NSF-58, NSF-42, NSF-53, NSF-401 and NSF-372 as well as ASSE 1086. It is proven to reduce more than 90 contaminants, including chlorine, chloramine, microplastics, PFAS, lead, arsenic, heavy metals, chemicals, nitrates, pharmaceuticals and more. We appreciate your inquiry. Please reach out directly if you have further questions! Best Regards, Kyra Digital Communications Specialist
Answered by: Delta
Date published: 2025-08-08

Does the addition of Delta Clarify result in any pressure loss?

Asked by: Smack
Hello Customer! Thank you for your question and we are happy to help. The Delta Clarify does not result in pressure loss when added. With any further questions or concerns, please do not hesitate to reach out to us again. Best Regards, Carrie
Answered by: Carrie
Date published: 2025-02-21

Can you connect this directly to the sink faucet and not use a separate water faucet?

Asked by: RobF
Hello! Thank you for contacting Delta Faucet Company! Yes, you can, however it connects to the cold water only. We appreciate your inquiry. Please reach out directly if you have further questions! Best Regards, Kyra Digital Communications Specialist
Answered by: Delta
Date published: 2026-01-27

How much water does this generate per use?

Asked by: CCCC
Hi Valued Customer, Thank you for your question. Please refer to the specification sheet in the link below. https://media.deltafaucet.com/SpecSheet/DSP-K-DWQ1001012%20Rev%20C.pdf Please feel free to contact us directly for technical information at 800-345-3358. We are available Monday through Friday from 8 a.m. to 8 p.m. and Saturdays from 9 a.m. to 6 p.m. Eastern Standard Time. Thank you for being a loyal Delta Faucet customer. Best Regards, Themar Digital Communications Specialist (800) 345-3358 customerservice@deltafaucet.com
Answered by: Themar
Date published: 2025-08-01

Can the Delta Clarifi Reverse Osmosis System DWQ1001012 be used for my refrigerator ice maker

Asked by: Mike

Purchased system for a new house build. The system will be about 4 months old before its 1st use. Currently not installed. 1 more month before we will be using it. How is the longevity of the cartridges determined? 2 yrs or 16 months before expiration?

Asked by: bill
Hello! This filter features a lifespan of 2 years or 1,320 gallons. Please reach out with further questions! Best Regards, Tim Digital Communications Specialist
Answered by: Digital Specialist
Date published: 2026-04-21
  • y_2026, m_7, d_30, h_9CST
  • bvseo_bulk, prod_bvqa, vn_bulk_3.0.48
  • cp_3, bvpage2n
  • co_hasquestionsanswers, tq_60
  • loc_en_US, sid_DWQ300300, prod, sort_[SortEntry(order=HAS_STAFF_ANSWERS, direction=DESCENDING)]
  • clientName_deltafaucet
  • bvseo_sdk, dw_cartridge, 18.2.0, p_sdk_3.2.0
  • CLOUD, getContent, 103ms
  • questions, product

PRODUCT WORKS WITH

Image-DWQ1001012 Secondary Image-DWQ1001012

Clarifi™

Clarifi™ Tankless Under Sink 6-Stage Reverse Osmosis System

List Price: $1,142.00

DWQ1001012

4.29 34

Water Analysis by Zip Code

Discover if contaminants are in your water and how Delta products can be a solution
Look up My water quality