Reverse Osmosis Remineralization Cartridge

Model#: DWQ300300
Reverse Osmosis Remineralization Cartridge
Model#: DWQ300300
$6990
List Price: $99.90
Save $30.00 (30%)

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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
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

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REVIEWS
Rated 2 out of 5 by from Not for us I had this installed during my remodel because I drink a lot of water. I hate the loud noise it makes, and it happens a lot. Plus, the water pressure is so-so. If I could do it again, I'd pick something else.
Date published: 2026-09-23
Rated 5 out of 5 by from easy to in stall Easy to install fallow directions.
Date published: 2026-09-17
Rated 4 out of 5 by from Excellent Design Could Use Better RO Filters Excellent design with built-in pump is why my plumber recommended this unit. We mounted the unit on the wall in the basement under the sink. Then split the output to run to the sink and the refrigerator. Decent flow for filling cups; filling the coffee pot is turn it on and come back. My wife measures total dissolved solids on a daily basis. The unit reduced TDS from 258 to 74. In comparison, our existing RO water pitcher has a TDF of 0
Date published: 2026-09-06
Rated 5 out of 5 by from Great tankless RO ststem Great tankless system. I replaced a tank system to increase my flow from the refrigerator. It’s improved tremendously and now we have more space in cabinets under sink. Installation was easy. Noise from pumps running while using is minimal- great upgrade from tank system.
Date published: 2026-07-06
Rated 5 out of 5 by from Good taste suggest add a pressure water tank My system is split to a dedicated faucet and my 2 refrigerator's, ice makers and water dispensers. Water taste good, no issues. I did have to add a small pressure tank to keep the system from cycling multiple times when the ice maker was being filled or the water was being dispensed from the refrigerators. The refrigerators back pressure causes the RO system to shut off prematurely. With the added small waterdrop PWT ( pressure water tank) the system no longer Cycles and the pressure of the water coming out, has increased a small amount. The number of times per day the system comes on has also decreased because of the PWT. The system is not loud but noticeable. The reviews I've seen mainly complain about noise from the system. Which it's not my experience. Again, adding the PWT also reduces the numbem cycles the system runs per day. The system was easy to put in. Only pre-requirement is a dedicated electrical outlet under the sink. I split my power from my dishwasher. I ran my electrical line from the dishwasher under my cabinet into a dedicated dual Outlet. Plug my dishwasher into one side and the RO system into the other side.
Date published: 2026-05-12
Rated 5 out of 5 by from Simple install, Great tasting water. Just what I was looking for. After 10 years of changing filters every 6 months and yearly I love this system. Water is great.
Date published: 2026-03-18
Rated 1 out of 5 by from DO NOT BUY!!! This unit is very noisy!! When you turn on the faucet, there is a loud groaning sound. It also seems to regenerate occasionally and makes the same loud noise plus it sounds like water sputtering through the drain! We can hear these noises on the second floor of our condo. We called GE and they know about these issues and there is nothing that can be done to stop this annoying noise. I will usually do not review items (good or bad) but for the money I spent for this - I don’t want someone to make the same mistake! The water actually tastes good but take my opinion - the aggravating noise is not worth the taste of the water.
Date published: 2025-12-26
Rated 5 out of 5 by from Great reverse osmosis system I’m really impressed with this filtration system! The water tastes super fresh and clean, such a big difference right away. I also love that it’s small and doesn’t take up much space under the sink at all. My husband was able to install it pretty easily, which was a huge bonus. Overall, a great upgrade for our kitchen and totally worth it!
Date published: 2025-12-02
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Q&A

Does this product remove fluoride as well?

Asked by: Isaac
Hi Isaac, Thank you for your question about the Delta Faucet model DWQ1001012. Reverse Osmosis does remove minerals from water. Average Product Contaminant % Reduction for fluoride is 91.1%. See the performance information here: https://media.deltafaucet.com/SpecSheet/DSP-K-DWQ1001012%20Rev%20A.pdf Please reach out with any additional questions! Best Regards, Bryan Digital Communications Specialist
Answered by: Customer Service
Date published: 2024-11-26

Does this have to be used in conjunction with a beverage faucet, or can it be connected to the kitchen sink?

Asked by: LDH1
Hi LDH1! Thank you for your question and we are happy to help. The Delta DWQ1001012 is designed for our beverage faucets. With any further questions or concerns, please do not hesitate to reach out to us again. Best Regards, Carrie
Answered by: Customer Service
Date published: 2024-10-14

Delta Clarifi RO installed 1/15/2025; 2 flashing red lights on the front, no water being dispensed. 

Asked by: Merlin RO
Hello Valued Customer, Thank you for contacting Delta Faucet Company! We apologize for the issues you are experiencing and we are happy to help! Please refer to the troubleshooting guide on page 17 in the link below! https://media.deltafaucet.com/MandI/115746%20Rev%20A.pdf We appreciate your inquiry. Please reach out directly if you have further questions! Best Regards, Kyra Digital Communications Specialist
Answered by: Delta
Date published: 2025-05-08

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
Hi Mike, Thank you for your question about the Delta Faucet Delta Clarifi Reverse Osmosis System DWQ1001012. Yes, this can be used for a refrigerator ice maker. The fridge's internal filter may need to be removed. See here for more information: https://support.deltafaucet.com/s/article/Reverse-Osmosis-System-and-Refrigerator-Ice-Maker-2nd-Faucet Please reach out with any additional questions! Best Regards, Bryan Digital Communications Specialist
Answered by: Digital Specialist
Date published: 2026-08-02

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
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