ProOne® G2.0 9″

(74 customer reviews)


Fits ProOne® Big+ & Propur King
Compatible with competitor systems (see FAQ for compatibility chart)
For daily use


The ProOne® G2.0 series filter is the only gravity filter that bears the distinguished NSF/ANSI-42 component certification. Outstanding performance in the reduction of over 200+ contaminants including heavy metals, fluoride, pesticides, herbicides, chlorine, chloramines, pharmaceuticals and more! Ideal for use with most natural potable water sources. Available in 4 sizes to fit most other gravity filtration systems.


Advanced features of the ProOne® G2.0 series filter include:
-“All-in-one” filter technology. NO add-on filter required for fluoride reduction
– Infused bacteriostatic outer ceramic shell and proprietary carbon-based granular media inside the core of the filter.
-No priming required
-Cleanable, reusable, can be stored in a cool dry place when not in use
-Does not need to be kept saturated when not in use
-Available in 4 sizes, 4”, 5”, 7” and 9” tall by 2.75” diameter
-Improved flow rates


ProOne® G2.0 Series water filter is NSF certified


Tested by a certified independent lab to NSF/ANSI Standards 42, 53, P231, P401 and P473. Please visit our lab reports for complete details.


ProOne G2.0 Ceramic Gravity Countertop Water Filters are NSF/ANSI-42 Component Certified!

ProOne® Water Filters offers affordable water filtration systems to help improve the quality of your water. Dedication to innovation, extensive testing, and exceptional customer service is our commitment to you! Get the only NSF certified gravity countertop water filter on the market today!



Click here for lab report

Click here for instructions

Additional information

Weight N/A
Filter Options

1 ProOne G2.0 9" Filter Element, 2 ProOne G2.0 9" Filter Elements, 3 ProOne G2.0 9" Filter Elements, 4 ProOne G2.0 9" Filter Elements


30-Day Risk-Free Guarantee, 1-year limited warranty


ProOne® G2.0 Series is Tested and Certified by NSF International against NSF/ANSI Standard 42 for material requirements only.

Currently no frequently asked questions available for this product.
Feel free to contact for any questions you may have!

74 reviews for ProOne® G2.0 9″

  1. Laura

    These filters are so much easier to use and maintain. We have hard water and the flow is much better on these than when we used a competitor’s filters, and we also appreciate being able to filter fluoride without needing a second set of filters.

  2. Jonathan Ziemba (verified owner)

    This is a great filter. It’s all in one, so it much more economical that others brands and the water tastes really good! The instructions are very clear. Would HIGHLY recommend.

  3. cherlyn.willis (verified owner)

    Love these filters. Water tastes clean and I feel confident giving the water to my children knowing it’s free of all the contaminates.

  4. LINDA RHODES RUSHING (verified owner)

    These filters are AWESOME!!! Removes all the bad stuff and leaves the water tasting so fresh! I love that this all in one filter also removed Fluoride!

  5. Vincent Taylor (verified owner)

    These filters are amazing the water 💧 taste way better after filter. It feels like your sipping on soft smooth clouds lol. Easy maintenance and easy to clean. A healthy alternative for your regular tap water. If you haven’t purchased the big model or travel size I recommend it

  6. Mark Layne

    The absolute best water filter on the market! Water taste is amazing! No extra filters to remove fluoride. This is a one and done solution. Customer for life!

  7. Shashidran Rajagobal (verified owner)

    These are awesome filters. No extra fluoride filters needed.
    Go for the multipack – great price.

  8. Mary Greishaw (verified owner)

    Love these filters! Our water normally tastes and smells of chlorine and has a funky feel in our mouths. These filters not only get rid of the taste and smell but changes the way the water feels! What’s even better is they take the fluoride out too! We have our parents and other family buying them too!

  9. Cheryl

    I’ve had my ProPure for at least 10 years and the container still looks as new as the day I took it out of the box. I live in a city that must be trying to kill us with high chlorine, fluoride, and who knows what else – the smell is overwhelming, but my ProPure continually turns it into fresh, clean, delicious water. I use it to make ice cubes too.

  10. Lenora lipari

    Bought these filters and I love the taste of my water. It is much more cleaner and fresher tasting. I would recommend these filters to everyone. I am a big eater drinker and i wasn’t all these toxins out of my water. Thank you again.

  11. Amy (verified owner)

    Bought these to replace my berkey filters and am impressed – the water tastes great, and I love not having to worry about them drying out if I go away.

  12. brian-0113 (verified owner)

    We’ll be using Pro One from now on.

  13. VW Family (verified owner)

    We used competitor filters for over a year. When looking to purchase updated filters, we encountered unpleasant experience with the competitor and decided to do some much needed research and stumbled upon ProOne. We are SO GLAD we did because the filters are incredible, taste far superior to the competitor, are simpler since you do not need two additional filters to filter out flouride AND they maintain their GREAT TASTE even after many many gallons of use. We love it so much we are back to order more filters. Thank you for making such a high quality product and going above and beyond to gain additional NSF testing and certification. Top notch!

  14. Rebecca (verified owner)

    We use these in our Berkey and the water tastes so fresh!! Will be ordering every time we need replacements.

  15. David Pollard (verified owner)

    Water taste great. Filters last about a year. On my 3rd set now.
    Filters stay clean for a long time. For my own curiosity, not a criticism, I wonder what causes filters to turn yellow/golden after a few months. Even so, a quick scrub and they are good for another few months.

  16. Christopher (verified owner)

    If you own a [rhymes with quirky] then do NOT buy those filters and buy THESE filters!! ProOne G2.0 9″ where have you been all of my water-filtering life?! signed, a now brutally loyal customer!

  17. Jenny (verified owner)

    Easy to install and the water tastes great!

  18. Sara (verified owner)

    Love these filters! Water tastes great, smells great, and looks great! I love that I do not have to prime them and they filter quicker than the competitors filters!

  19. Cindy (verified owner)

    This was the first time I’d ordered these filters. They were super easy to install and are filtering quickly! I’m also thankful that I don’t have to add flouride filters. It does look like they will be a little more expensive than a competitor to maintain since they need to be replaced every 12 months. If I calculate the cost of both filters from the other brand (one every year and the other every 5 years), it seems to average out to about the same. In any event,, I’m pleased with the simple installation and maintenance.

  20. Cindy (verified owner)

    This was the first time I’d ordered these filters. They were super easy to install and are filtering quickly! I’m also thankful that I don’t have to add flouride filters. At first, I thought they wiould be a little more expensive than a competitor to maintain since they need to be replaced every 12 months. If I calculate the cost of both filters from the other brand (one every year and the other every 5 years), it seems to average out to about the same. In any event,, I’m pleased with the simple installation and maintenance.

  21. msiegel1492 (verified owner)

    I use these in my Berkey and I noticed a big difference in the taste of the water immediately! These also filter a lot faster and I don’t have to kill my hands/wrists scrubbing them every couple months like with the black filters.

  22. Crystal (verified owner)

    I have had ber.key for 12 yrs. I tested every 3-6 months and two years ago I had ten…yes TEN filters Fail the red dye test. I contacted the company each time and returned (I had to pay for shipping because they refused). After the fifth failed filter I asked if they figured out the problem and they stated “we aren’t sure. Probably the glue that holds the carbon in the plastic” I asked if they had quality control to figure it out and she admitted they did not and didn’t seem to care WHY their filters were failing many. As a loyal consumer of this last HIGHLY expensive company I was floored and quite angered. At the tenth filter that failed we made the decision to switch to ProPur (Now called pro one) AND WE ARE SO SO HAPPY with our choice to switch!!!!!! The only wish I had, was that I could test my filters to ensure they are filtering good. However the taste is amazing and I don’t get a stomach ache or raw feeling throat as tap water does to me which tells me that they are working to filter out chlorine and bacteria!

  23. Megan (verified owner)

    These filters are the only ones we trust on the market right now. We appreciate that they are tested, NSF verified, and lab reports are made avaliable. We use these filters to make sure our kids (teenagers to infants) have safe water to consume that actually has the fluoride, chlorine, and tons of other awful junk filtered out. Thank you for being an honest company. We will always refer ProOne!

  24. Rich

    Fantastic. Will never go back to Berkey filters Not having to prime these filters is amazing.

  25. Sarah Reiser (verified owner)

    We love these filters! We use them in our berkey system and they are much cheaper and easier to install just one filter!

  26. Doug (verified owner)

    The best gravity water filters in the business. The difference in water quality is absolutely incredible, no more RX drug residue, fluoride or chlorine, just pure, refreshing H2O that tastes like it came from a mountain spring. We’ve had our ProOne filter for over 7 years now and I wouldn’t even consider drinking tap or bottled water again.

  27. Arianne (verified owner)

    I switched from using Berkey filters to these ones. I love that they are so easy to set up compared to the Berkey filters. These ones you just scrub down, install, filter the water a few times and then good to go. Water tastes great as well,

  28. Michelle Maxwell (verified owner)

    Like it because water does not have any taste, these filters are easy to clean and install.

  29. Steve (verified owner)

    Excellent water filtration! Didn’t think anything would be able to get the bad tastes out of the water here ( especially the chlorine,) but these did! Cheaper and easier than having to buy bottled water, and it is great not having to recycle plastic bottles anymore.

  30. Lindsay (verified owner)

    I was so excited to find replacement filters that I could use with my berkey device. I was disappointed to discover that the berkey didn’t filter out all contaminants like it promised so I was looking for a good replacement. I was so happy to find ProOne filters. They don’t need to be primed and I don’t need to buy separate filters for fluoride filtering. So far I’m happy and look forward to enjoying safe water!

  31. Mark (verified owner)

    Cheaper and better than the “other” guys!

  32. Nancy Harrison (verified owner)

    I contacted ProOne and left a message about these waters and they responded that day just as they said they would . The Customer Service Representative was very knowledgeable about the product , professional and easy to speak with. Also, I received the filters within days. What a difference in the taste from the ProOne filter verses tap water. Thank you ProOne!!!!!

  33. Abhijit Patwardhan (verified owner)

    Works great and easy to care for

  34. Kelly Bryant (verified owner)

    Very happy with the ProOne filters versus the competitors (B has no legitimate testing) and the ease of use the ProOne provides. Unfortunately, I originally bought into all the hype/marketing of the B product and now wish I would have bought the ProOne system to begin with. I am very glad these water filters are made available to those like me that made the mistake. Thank you ProOne!

  35. Marybeth (verified owner)

    I bought the 9″ filters to replace the Berkey filters as ProOne filters fluoride etc. Couldn’t be happier with them and the customer service. I was told by the CSR that the 7″ would fit but I had already bought the 9″. The ease of priming the filters for use is 100% easier than the Berkey system. I am sorry I didn’t know about ProOne before buying the Berkey sustem.

  36. Mason (verified owner)

    I use these in my berkey unit. A friend notified me of this company. I like these better than the berkey filters. They’re less expensive and they have been throughput – water moves through quicker. Also they filter fluoride which required a separate berkey filter.

  37. Amy Watson (verified owner)

    This is my first purchase from ProOne, I was looking for filters to put in my Berkey as my old filters were shot. Berkey is backorder many months for their filters and I didn’t want cheap knockoffs. I purchased these as I ha e heard great reviews for ProOne and wanted to give them a try, They did not dissapoint,, the 9″ filters fit my Berkey perfectly! Instead of having 2 filters this is the same as Berkey’s 2 filters in 1!

  38. Allie (verified owner)

    I love these filters! I use them in my crown Berkey and because I have an allergy to something toxic in our tap water. So I literally use this to shower every night. I’ve tried showerhead filters and they don’t work but this is amazing! Without the water being filtered this way I get migraines everyday. This is the only thing that works and has changed my life.

  39. Wendy Tunnessen (verified owner)

    So happy to find a filter that includes flouride removal! And one that appears to be much sturdier than Berkey’s. I was shocked and dismayed when I discovered during testing that BOTH Berkey filters in one Berkey device failed the dye test only a year or so into use (they may have actually failed even sooner — I had accidentally left them to drip for a longer time than before, and when I returned to check, the water that had appeared clear on last observation, had now become quite noticeably red. Berkey filters must be extremely fragile, as I was extremely careful when handling them. I have high hopes for a much better experience with ProOne!.

  40. emilyjcandela (verified owner)

    Great filters. Feel confident in my drinking water

  41. Tyler Wheeless (verified owner)

    These filters are very easier to use and a breeze to maintain. What adds to this is I get 2 for 1 with PROONE’s filters instead of having to buy separate filters for fluoride. The water filtered by these filters tastes wonderful. Looking forward to trying more Pro One products.

  42. Heather (verified owner)

    Purchased as a replacement to Berkey’s black and white filters. I used a 64 oz. Ball jar filled with distilled water to soak the filters in before scrubbing them with the included scrubbing pad. Only downside was that the scrubbing pad disintegrated as I scrubbed the filter. I appreciate the handy, small (compared to Berkey’s version) plugs included with the filters.

  43. Danny (verified owner)

    I haven’t had these filters for long, switched from Berkeley, but so far I really like them. Don’t have to prime!

  44. kate nartker (verified owner)

    We just got these to replace our Berkey filters and they are great. They filter much faster than Berkey and have no chemical taste.

  45. Stephanie Wright (verified owner)

    A year ago I switched from using Berkey filters to using Pro One. It was so nice that the were able to fit into my Berkey tank so that I did not have to buy a whole new system. They are easier to clean, no priming, filter faster and my water tastes great! I will continue to use Pro One!

  46. Joe (verified owner)

    better to use these filters instead of Berkey who is currently involved a much deserved class action lawsuit lol

  47. Tim (verified owner)

    We purched a 4 pack in April 2023 and after 3 months have noticed a significant improvement of taste and clarity in our water. We use this daily going thru about 10 gallons a day now for our humans and animals consumption… ordering a spare 4-pack shortly as while we dont see this diminishing in effective soon, we want a backup set so we do not have to delay in our daily usage consumption. Have recommended to family and friends and they also have purchased.

  48. Lisa S (verified owner)

    So happy to have found your filters. I have found them so easy to use. We took a 2 week trip, loved that I didn’t have to Prime filters again. Now looking to buy units for my kids & grandkids.

  49. Jane Barbour (verified owner)

    These work wonderfully well. Our water is clean., good tasting I ordered 2 filters for my big Berkey , and found one was plenty, no priming, it completely filters the water, and now without any problem at all my unit is full of very clean and delicious water. So glad to have have found such a good product. Wonderful people to troubleshoot with too. I had to have help in which filter would work… ♥️

  50. Linda

    I purchased 4 of th 9″ (to replace 8′ 4 upper and 4 lower). I can now actually filter more water because of reduced filter displacement. I’m particularly happy with how quickly the water filters. The filtered water tastes different, softer, but still pleasant. Unquestionably, my morning coffee tastes superb. I’m sincerely happy with the investment

  51. Charlotte Longenecker (verified owner)

    I purchased 2 9″ filters to replace the filters in my Berkey system. The included instructions said to lightly clean the filters prior to installing and then to filter water through and discard 2-3 times before drinking. I did as instructed and the water did not taste good after the third time filtering. After 6 times I removed the filters and gave them a more thorough scrubbing, then filtered and discarded a few more times. Thankfully this did the trick and the filters have been working great since! I think the instructions could just use a little tweaking for best results 🙂

  52. Mary Nickels (verified owner)

    Definitely glad I was able to finally purchase these. They filter much faster and I fell more confident in their contaminate removal.

  53. Janice Fadal (verified owner)

    I have used the Berkey carbon filters with the fluoride filters for years. I always have a difficult time priming the filters. I read lot of reviews on the ProOne combination filter and decided to try it. They were super easy to install and were easily primed. I love that and will now switch over to ProOne. I just wish I didn’t have to replace them every six months.

  54. Anna c. (verified owner)

    We love these filters! We switched from berkey and could immediately tell the difference. I also love that these filters are all in one and not having to buy two separate filters to get the filtration We want is great.

  55. Christy L (verified owner)

    We’ve used the ProOne system for over a year now. Spent so much time comparing different systems on the market and ProOne and these 9″ filters stood out as the market best. Very happy with them, the taste and quality of the water.

  56. Doug Powell (verified owner)

    Prior to trying the Pro One gravity filter system, my family purchased bottled spring water. We have also used the Berkey system in the past but after having the water from that filtration system professionally tested, we realized that even their fluoride filters were not removing all of the fluoride and the Berkey was not effectively filtering out other contaminates, leaving excessive levels of copper, lead and arsenic in our drinking water. After those findings, we switched to a spring water source. This Pro One system is appealing because it costs much less per gallon than bottled water, reduces exposure to micro plastics and doesn’t require two filters like the Berkey. That said, I do not feel these filters deserve a 5 star rating because the taste of the water is not as good or alive as the spring water we were buying. Initially after setup, it took throwing out the first 20 gallons of filtered water before the “baking soda” taste of the new filters went away. My honest opinion on the Pro One filtered water is that it tastes “fine” but does not wow me. Two members of my family don’t like the taste at all. I will keep using these for myself and will purchase a filter system for our ice maker. I was hoping that these filters would be a game changer for the whole family and allow me to consider a whole house option, but that doesn’t appear to be the case. I cannot speak to longevity of the filters since these are our first. My expectation based on the website’s claim of 1200 gallons per 9″ filter that 2 x 9″ filters will give us 2400 gallons which should last us a year based on our consumption habits.

  57. Mathew Kamkar (verified owner)

    Replaced my Berkey filters, and the water from these filters do taste more crisp and clean. It’ll be a while before I need replacement filters, but I’ll be coming back to ProOne!

  58. Rebecca Morrissey (verified owner)

    Best purchase ever!!! We originally bought a Berkey, but did not use it for over a year because we had filtered water in our refrigerator at the time. Fast forward to a year later, we now need to use it again. Went to look for new filters from Berkey and found to be sold out. As we did more research we also found some red flags with them. I then found Pro One, did heavy research and found they check all the boxes for us!! Our water is really bad, you can smell the chlorine coming off it. After filtering it through the Pro One filters there is no smell or weird tastes. Honestly the best water ever. It is also so nice and convenient that we don’t have to prime the filters because that was the trickiest thing about Berkey’s. So glad we did our research and found Pro One, can’t wait to try more products from them!

  59. Steven E (verified owner)

    I used these filters as a replacement for a similar looking brand that filters are currently out of stock. They fit and the water tastes great. A perfect option for those looking to replace their filters

  60. Ashley H (verified owner)

    I love how fast these filter water!!

  61. Zoe Warren (verified owner)

    So far so good! It was really great not getting myself soaked while priming a filter lol I am pleased with the taste and ease of use so far! Thanks for being diligent. Our family appreciates your carefulness to maintain great quality control and a phenomenal product.

  62. Eric (verified owner)

    prompt shipping and works as advertised . verry happy!

  63. Ross Barnett

    Great product saving the world from toxic water!

  64. Valerie Biase (verified owner)

    Great filters. Much better than a previous brand I was using.

  65. melissadarin (verified owner)

    We absolutely love our filters!!! Easy to use and replace!! Best decision ever!!!

  66. melissadarin (verified owner)

    We absolutely love our filters!!! Easy to use and replace!! Best decision ever!!! Even the kids drink water now!!!

  67. Shonda (verified owner)

    We decided to make the change from Berkey to the ProOne filters based on recommendations from others. When I first set it up, I thought there was a funny taste. So, I emptied that first filtering and after that, the funny taste was gone. I wonder if I didn’t flush it well enough. But I must say, this filter is wonderful and I love the flavor of the water and it is great knowing that this filter is getting all the bad stuff out. I think it is much better than the Berkey filters. I love these filters!

  68. Becky Stahler (verified owner)

    Bought to replace Berkey filters- these are easier to use (no priming) and are said to have superior filtration!

  69. TIM (verified owner)

    We are enjoying better tasting water with the ProOne filters. We recommend the product..

  70. Brittani (verified owner)

    These filters are the best! I’ve used Berkey filters for years and these are way better! Pro one filters already filter fluoride so there’s no need to buy deprédate filters for that! The water tastes even better too! Thanks! Customer for life now!

  71. Laurie Dudley (verified owner)

    As far as I can tell, so far, these are doing well as a replacement for Berkey water filters. Water tastes good but I have only had them 3 weeks. Planning to order more.

  72. Cameron Niemela (verified owner)

    Installed these in a Berkey and they worked great! Filters quicker and tastes great.

  73. TD (verified owner)

    Been using these for years and will never use another product.

  74. Robert Lopp

    Insuring clean water through ProOne filters has become the best investment we’ve ever made!

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