Delta Dwq300300 Clarifi Reverse Osmosis Remineralizer Cartridge
Delta Dwq300300 Clarifi Reverse Osmosis Remineralizer Cartridge
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Delta Dwq300300 Clarifi Reverse Osmosis Remineralizer Cartridge

Key item features

  • Delta DWQ300300
  • Clarifi Collection
  • Under Sink System Accessories
  • N/A
Current price is $69.90
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  • Free shipping
  • Free 30-day returns

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Arrives by Fri, Jul 10
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Sold and shipped by Buildcom
4.202643171806168 stars out of 5, based on 3405 seller reviews(4.2)
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$74.43
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Shipping, arrives by Thu, Jul 9 to Columbus, 43215
Sold and shipped by eFaucets
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Customer ratings & reviews

4.7 out of 5 stars
stars
23 ratings23 reviews
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Showing 1-3 of 23 reviews

May 12, 2026
Bill
5 out of 5 stars review

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.

Review from deltafaucet.com
Helpful?7A2E53LPT3MW15581864921
Dec 2, 2025
mimia53_2432
5 out of 5 stars review

Great reverse osmosis system

[This review was collected as part of a promotion.] 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!

Review from influenster.com
Helpful?7A2E53LPT3MW15581864921
reply from Delta

Hello! Thank you for contacting Delta Faucet Company! We are happy to hear our product meets your expectations! We appreciate your feedback. Please reach out directly if you have further questions! Best Regards, Kyra Digital Communications Specialist

Oct 24, 2025
erini17_3080
5 out of 5 stars review

Convenient and fresh-tasting water

[This review was collected as part of a promotion.] We recently installed the Delta Clarifi tankless reverse osmosis system, and I've been really happy with it so far. The water tastes super clean and fresh and comes out fast since there's no tank slowing things down. It also doesn't take up too much space under the sink. Installation was pretty straightforward, and filter changes look easy when it's time. One thing worth noting is that, like most RO systems, it removes pretty much everything from the water, so we purchased a remineralization cartridge (sold separately) to put healthy minerals back in. Not a downside, just something to plan for if you are thinking about purchasing this. You also need to purchase a separate faucet. Overall, it's been a great upgrade and totally worth it for the quality and convenience.

Review from influenster.com
Helpful?7A2E53LPT3MW15581864921
reply from Delta

Hello! Thank you for contacting Delta Faucet Company! We are happy to hear our product meets your expectations! We appreciate your feedback. Please reach out directly if you have further questions! Best Regards, Kyra Digital Communications Specialist