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Geekpure 6-Stage Reverse Osmosis Water Filter System with Alkaline pH+ Remineralization Filter-75 GPD
Key item features
- Advanced Filtration: 6 Stage Under-Sink Reverse Osmosis Drinking Water Filtration System with NSF certificated Thin-film composite RO membrane, reducing over 1000 contaminants.
- Alkaline Remineralization: Includes an additional 6th stage filter that adjusts pH to 7.5-8.5 and adds essential minerals like Calcium, Magnesium, Sodium, and Potassium.
- High Quality: Premium components ensure reliability and low maintenance, including NSF certificated tubes, fittings, storage tank, and RO membrane.
- Generous Capacity: System capacity of 75 gallons per day with a 2.8-gallon tank, fitting most under-sink cabinets with a smart size design.
- Easy Installation: Comes with quick connect fittings, color-coded tubing, and instructional videos for a DIY installation experience.
- Lead-Free Faucet: Includes a premium, lead-free deluxe kitchen sink faucet for the final pure water guarantee.
- Wastewater Ratio: Produces 1 gallon of pure water for every 2 gallons of wastewater, utilizing NSF certificated RO membrane filters.
- Comprehensive Kit: Package includes 6 filters, faucet, diverter valve, storage tank, wrenches, fittings, water pipe, clips, drain clamp, and Teflon tape.
Generated by AI
Specs
- Filtration stages6
- Height18.1 in
- Rec. useResidential
- ManufacturerGeekpure
- Weight25 lb
- ModelRO5-AF
Reviews summary
Pros
- : Offers great value at this cost.
- : Produces cleaner and better-tasting water.
- : Has a clean, natural taste profile.
- : Most users find it easy to set up.
Neutral
- : Can be clear, but also confusing for some users.
Cons
- : May require additional sealing or adjustments to prevent water leakage.
Generated by AI
Current price is USD$154.99
Price when purchased online
- Free shipping
Free 30-day returns
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Sold and shipped by GEEKPURE
4.389671361502347 stars out of 5, based on 426 seller reviews(4.4)426 seller reviews
Free 30-day returns
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About this item
Product details
Specification:
FEED WATER PRESSURE: 40 - 100 PSI
TEMPERATE:40-110°F/5-45°C
PH:3.0 -11.0
MAX TDS :1000 PPM
TURBIDITY < 1.0 NTU
MAX SDI <4.0
HARDNESS < 5 GPG
IRON <0.1
MANGANSESE <0.05
Shelf life: 3 Years
Note:
1.It Is Recommended to Wait Until the Entire System Is Pressurized (Including Storage Tank&Faucet) and Re-Check for Any Leaks Before Leaving Installation Site.
2.It Is Normal for Some Black Carbon Fines to Appear in The Water When Emptying the First 2 Tanks of Water. The First 2 Tanks of Water Produced Should be Emptied and Not Used.
3.Push the Tubing All the Way in and Use Teflon Tape During Installation.
Key Product Features :
1.Alkaline Mineral pH+ Filter
Adds Calcium, Magnesium, Sodium and Potassium Ions and Produces pH-balanced alkaline water. pH of Ro water is 5-6 ,it can increase pure water to 7.5-9.
2.Lead Free Faucet
Premium ceramic disc operated, certified Lead-free ro drinking water dispensing faucets. 3/8 inch output. Faucet has a mounting range of ½”- 1 ½” for installation in a sink or countertop.
3.Wastewater ratio is 1:2
NSF certificated Thin-film composite RO membrane filters with higher water production rate. 2 gallons wastewater will be produced for every gallon pure water.
More valuable information:
1.What is dimension of installed Geekpure RO5-AF?
ANSWER: RO unit:14.20”x 6.2”x18.1”.Storage tank: Diameter 9.45”xHeight 14.4”. weight:25lb
2.What is 6stage filter and function?
ANSWER: the 1st stage: PP spun filter, Remove sand, dirt, sediment.
the 2nd stage: Granular carbon filter, Remove chlorine, taste & odors, very fine particulates
the 3rd stage: Carbon block filter, Further remove chlorine, taste & odors, very fine particulates
the 4th stage: TFC Ro membrane, Reduce up to 99% total dissolved minerals, heavy metal, Arsenic, Mercury, Iron, lead ,Fluoride etc .
the 5th stage:Acid washed coconut carbon filter, Polish water for refined taste.
the 6th stage:Alkaline filter, Adds Calcium, Magnesium, Sodium and Potassium Ions and Produces pH-balanced alkaline water.pH of Ro water is 5-6 ,it can increase pure water to 7.5-9. .
3.What is in the box?
ANSWER: 1 SET filters (6 pieces filters),faucet,diverter valve,storage tank,2 pieces wrench,some fittings,water pipe,clips,drain clamp,teflon tape and so on.
4.BPA free?
ANSWER: Yes, BPA free and Lead free faucet .
- 6 Stage Under-Sink Reverse Osmosis Drinking Water Filtration System with NSF certificated Thin-film composite RO membrane, down to 0.0001 micron,Reduce heavy Metal,Arsenic,Mercury ,Fluoride,Chlorine,Lead and more 1000+ contaminants.Experience fresher healthier baby formula,tea and coffee,better tasting foods and crystal clearer ice cubes,great tasting even better than most bottled water
- Regular Ro system produces slightly acidic water pH at 5-6.5. This unit includes an additional 6th stage-Alkaline Remineralization filter which adjust PH of pure water to 7.5-8.5,Adds Calcium, magnesium, sodium and potassium ions back to the Ro water
- Premium quality components ensure highest reliability and low maintenance for many years to come. All tube,quick push fittings, storage tank,Ro membrane is NSF certificated,to provide healthy and pure water. LEAD FREE deluxe kitchen sink faucet as last pure water guarantee in your home
- System Capacity 75 gallons per day @ 60 psi.Tank Capacity 2.8 gallon,Fits most under sink cabinets,smart size for ensure you get pure water every time.Pipe Size:1/4 inches and 3/8 inches.The Ratio of pure water and waste water is 1:2.Feed Water Condition:Water Pressure: 40 - 100 psi,Temperate:40-110°F/5-45°C,Ph:3.0 -11.0,Max TDS :2000 ppm tap water or well water
- System comes with quick connect fittings, color coded tubing, and videos for an easy DIY experience,Don’t waste money for professional installation ,you can understand everything about your system and install it with our well-organized instructions in a couple of hours
info:
We aim to show you accurate product information. Manufacturers, suppliers and others provide what you see here, and we have not verified it.
Specifications
Under-sink & countertop filtration system type
Under-Sink Filtration System
Filtration stages
6
Brand
Geekpure
Height
18.1 in
Warranty
Warranty information
One year warranty, except manual damage to the machine
Please be aware that the warranty terms on items offered for sale by third party Marketplace sellers may differ from those displayed in this section (if any). To confirm warranty terms on an item offered for sale by a third party Marketplace seller, please use the 'Contact seller' feature on the third party Marketplace seller's information page and request the item's warranty terms prior to purchase.
Please be aware that the warranty terms on items offered for sale by third party Marketplace sellers may differ from those displayed in this section (if any). To confirm warranty terms on an item offered for sale by a third party Marketplace seller, please use the 'Contact seller' feature on the third party Marketplace seller's information page and request the item's warranty terms prior to purchase.
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Customer ratings & reviews
How item rating is calculated
4.8
4.8
4.4
3.9
0.4
2.8
Reviews summary
Pros
- : Offers great value at this cost.
- : Produces cleaner and better-tasting water.
- : Has a clean, natural taste profile.
- : Most users find it easy to set up.
Neutral
- : Can be clear, but also confusing for some users.
Cons
- : May require additional sealing or adjustments to prevent water leakage.
Generated by AI
Customer photos
+1 image
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Showing 1-3 of 135 reviews
Nov 4, 2025
Donna
5 out of 5 stars review
Verified Purchase
can't drink the water in the city of Houston anymore I'm too old to carry around a bunch of gallons of water from the water store so I got this filter for $150 I installed it it's absolutely wonderful I just wish I had gotten the whole home one cuz now I'm thinking about the hot water another shower with not being clean anyway what I got is wonderful no more bad water from me
Helpful?4UGS6PC68GRH261003800
Sep 16, 2025
Jas
5 out of 5 stars review
Verified Purchase
RO SYSTEM
I love the RO Greek Pure RO5 Series 6-Stage system! Installation was surprisingly easy even for a female like me. The only tricky part was the video instructions; they aren't very clear or step-by-step, so be prepared to figure some things out on your own. That said, once installed, the system works perfectly. My family now has clean, great-tasting water, and I couldn't be happier. Highly recommend watching the installation videos on YT.
Helpful?4UGS6PC68GRH261003800
Jul 1, 2025
Belle
5 out of 5 stars review
Verified Purchase
I liked it so well I bought 3.
This is my 3rd unit I purchased in the last 6 months. Purchased 1 for myself and then 2 more for my kids homes that really liked the taste of the water after I had it installed. I am so happy and have peace of mind . I took all of the gallon jugs I had been hauling water in and turned them into terrariums for springtime seedlings.
Helpful?4UGS6PC68GRH261003800
