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frontpagebabgaly | Staff posted Jan 07, 2026 12:42 AM
frontpagebabgaly | Staff posted Jan 07, 2026 12:42 AM

SimPure Reverse Osmosis Under Sink Water Filter System (Alkaline or Near 0 TDS)

+ Free Shipping

$100

$199

49% off
Amazon
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SimPure Direct via Amazon has SimPure Reverse Osmosis Under Sink Water Filter System on sale listed below for $167.20 - 40% off when you visit the promo code page to activate (or apply promo code T1NEWYEAR at checkout) = $100.32. Shipping is free.

Thanks to Deal Hunter babgaly for sharing this deal.

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Editor's Notes

Written by citan359 | Staff
  • Rated 4.3 out of 5 stars based on over 1,300 Amazon customer reviews.
  • Please see the original post for additional details & give the forum comments a read for helpful discussion.
  • Don't have Amazon Prime? Students can get a free 6-Month Amazon Prime trial with free 2-day shipping, unlimited video streaming & more.
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Written by babgaly | Staff
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Deal Details
Product Info
Community Notes
About the Poster
SimPure Direct via Amazon has SimPure Reverse Osmosis Under Sink Water Filter System on sale listed below for $167.20 - 40% off when you visit the promo code page to activate (or apply promo code T1NEWYEAR at checkout) = $100.32. Shipping is free.

Thanks to Deal Hunter babgaly for sharing this deal.

Available:

Editor's Notes

Written by citan359 | Staff
  • Rated 4.3 out of 5 stars based on over 1,300 Amazon customer reviews.
  • Please see the original post for additional details & give the forum comments a read for helpful discussion.
  • Don't have Amazon Prime? Students can get a free 6-Month Amazon Prime trial with free 2-day shipping, unlimited video streaming & more.
  • If you're not a student, there's also a free 1-Month Amazon Prime trial available.

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Written by babgaly | Staff

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Top Comments

fieldcar
641 Posts
360 Reputation
Reverse osmosis (RO) systems remove nearly all dissolved minerals from water, including beneficial ones like calcium and magnesium. This results in water that is very pure but often tastes flat or bland due to the lack of minerals. Additionally, the absence of minerals can make the water slightly acidic, with a pH typically between 5.0 and 6.5.
To improve taste and balance pH, an alkaline filter is added as a final stage in some RO systems. This filter reintroduces essential minerals such as calcium, magnesium, and potassium into the water. Doing so raises the pH to a more neutral or slightly alkaline level (typically 7.0–8.5), enhances flavor, and gives the water a smoother mouthfeel.
In short, the alkaline filter prevents flat water by restoring minerals removed during RO filtration, making the water more pleasant to drink and less acidic.
pwnking
121 Posts
54 Reputation
Reverse osmosis tips. Only use dow filmtec membranes. Everything else is worse and not worth savinga few bucks. Amazon sells the film tecs for 30.00. Ispring is a decent starter brand for kits. Tank and the autoshut off valve are the weakest link. Might switch them out ASAP. Bulk Reef Supply is your best friend for RO. They dont sell garbage. Pumps are silly IMO. I get 98-99% rejection without it. If you do get a pump, this one is crap. Get a flowtec or shurflo. The pressure tank, is most likely the first thing that breaks though, and it's very hard to get an American tank. USA Water Systems used to sell American tanks, but now it seems you have to buy the whole 500.00 us system to get the us tank. Pretty solid warranty though.
NaPra
1871 Posts
2611 Reputation
Just wanted to mention that alkaline water "benefits" are bunch of nonsense: https://www.mayoclinic.org/health...q-20058029

181 Comments

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Jan 07, 2026 08:08 PM
98 Posts
Joined May 2010
thebamboozleJan 07, 2026 08:08 PM
98 Posts
Quote from hamburgerler71 :
medical science (science) will tell you that your body will regulate the acidity of your body no matter what gwyneth paltrow or anyone else on the internet tells you. there is nothing you can ingest that will change the ph of your body as long as you lungs and kidneys are functioning properly. well that is within reason and not deadly. as far as calcium, magnesium, and potassium, well, they are commonly known as electrolytes and most people consume way more than they need with drinks and supplements. this is causing an increase in kidney stones! also your liver will detoxify your body not things that make you cry on the toilet. so take the information however you want, but just remember. even though you think it makes sense and feels good if science tells you that you are wrong. you are wrong.
"trust the science!!!"
3
6
Jan 07, 2026 08:13 PM
1,548 Posts
Joined Mar 2006
bluskyeJan 07, 2026 08:13 PM
1,548 Posts
Quote from thebamboozle :
"trust the science!!!"
No where in nature is water 100% ... so that is fact. you want that amazing mountain stream water, well its running over rocks that mineralize the water with whatever is in the rocks. Your body will take up minerals in whatever you eat, veggies or proteins period. I think the route of just using a simple filter that only takes out what you really dont want at elevated levels depending on your water source.
Last edited by bluskye January 7, 2026 at 01:15 PM.
Jan 07, 2026 09:24 PM
26 Posts
Joined Feb 2010
heisssenbergJan 07, 2026 09:24 PM
26 Posts
I grow Carnivorous plants. For watering them you want as close to distilled water as you can get. Otherwise the mineral content builds up and kills the plants. I got my RO system from a failed aquarium store. I got the system and 2 years of filters for less than $150. Just keep an eye out and deals will pop up.
Last edited by heisssenberg January 8, 2026 at 09:52 AM.
Jan 07, 2026 09:32 PM
121 Posts
Joined Jul 2012
pwnkingJan 07, 2026 09:32 PM
121 Posts

Our community has rated this post as helpful. If you agree, why not thank pwnking

Quote from BeautifulLake409 :
Any suggestions?
BRS 4 Stage RO Only System - 75GPD - Bulk Reef Supply
1
Pro
Jan 07, 2026 09:53 PM
2,791 Posts
Joined Dec 2017
PoorFatKid
Pro
Jan 07, 2026 09:53 PM
2,791 Posts
Quote from Artc8888 :
PLEASE Note the replacement filter will cost you $63 (set) + RO filter ($52)..... also, i prefer to have a clear canister, where I can visually monitor the degradation of the filter....
You can see filter degradation? Hmmm.
Jan 07, 2026 10:52 PM
2,630 Posts
Joined Feb 2004
SundayJan 07, 2026 10:52 PM
2,630 Posts
How can I be sure any RO system is not adding anything to my water?

I mean something like this
https://drclarkstore.com/blogs/ne...-particles
https://www.sciencedirect.com/sci...6625000968
Jan 07, 2026 10:58 PM
4,813 Posts
Joined Sep 2008
karaziJan 07, 2026 10:58 PM
4,813 Posts
Quote from Sunday :
How can I be sure any RO system is not adding anything to my water?

I mean something like this
https://drclarkstore.com/blogs/ne...-particles
https://www.sciencedirect.com/sci...6625000968
Get it lab tested.... Get a TDP meter.... Depends how neurotic you want to get about it

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Jan 08, 2026 12:14 AM
68 Posts
Joined Oct 2016
dibbumsJan 08, 2026 12:14 AM
68 Posts
Quote from riffdex :
We see marketing claims that alkaline water will neutralize the overall body, and it's often purported as a way of neutralizing stomach acid. These claims are pseudoscience, and promote the false idea that the acidic environment of the stomach that is so vital to digestion need to be eliminated - claims that often sound logical enough to convince some end-consumers.

But you can't look at instances of erroneous claims as evidence that the underlying product itself has no application. Not everybody who is utilizing alkaline water is doing so because they believe it can "alkalize the entire body". It is a very effective as a targeted tool to treat conditions like LPR that results in a build up of pepsin in the upper esophageal tract, serving to neutralize the acids that should not be there, but are, and are causing damage to tissue in the region - with the implication that you are also taking concrete steps to address the underlying dysfunction itself.

The cool thing about Alkaline water is it's strictly speaking a generic term that refers to a water with alkaline properties, which no company (and their erroneous marketing campaigns) has a monopoly on. I produce my own Alkaline water in house at a fraction of the cost of any marketable product, and my utilization of the product is based on my understanding of the underlying chemical science, not any marketing team trying to convince me nonsense about the health benefits they claim their product can offer.
Thanks for the info!
Jan 08, 2026 02:30 AM
1,450 Posts
Joined Dec 2009
sadudeJan 08, 2026 02:30 AM
1,450 Posts
I first got RO system from Costco that had a mini bladder inside the unit to make it smaller. It's flow rate was very slow. Then I read that you need larger tubing so the next system I got was from home master that has 3/8" tubing while most systems have 1/4". Mine also has the UV light

I am not sure I understand how tankless works when the process for RO takes times. I know water drop makes tankless but I don't have personal experience but my friend has and that unit is still quite large as it has 3 cartridges on the front of it.
Jan 08, 2026 03:06 AM
376 Posts
Joined Dec 2007
bobdobJan 08, 2026 03:06 AM
376 Posts

Our community has rated this post as helpful. If you agree, why not thank bobdob

Quote from BeautifulLake409 :
Any suggestions?
The one I had was from Bulk Reef Supply, but most of the various aquarium shops are pretty open about what they are selling. If you are doing a reef tank, make sure to get RO/DI, which should include DI resin. 4 stage in that case is going to be a sediment filter -> carbon block - > RO membrane -> Mixed Resin. I went 6 stage which adds a prefilter slot and splits out the resin to cation and anion, like this one:
https://oceanicwater.com/aquarium...0-gpd.html


But it was 20 years ago, so I cannot vouch for any particular company at this point.
2
Jan 08, 2026 04:52 AM
47 Posts
Joined Jul 2020
CakeBeforeBedJan 08, 2026 04:52 AM
47 Posts
Might be useful.
Jan 08, 2026 05:18 AM
126 Posts
Joined Jun 2009
xlr231Jan 08, 2026 05:18 AM
126 Posts
Quote from Hamburgerler71 :
So if I am reading this correctly the whole system is $100 But replacement filters for 1 year are $168. Does anyone know if I can buy more then 1 system with the code or am I limited to just 1? bonus back up pump tank etc.
The 1 year kit comes with 1 RO filter, but 2 each of the other 3.
Jan 08, 2026 01:31 PM
962 Posts
Joined Jan 2010
vineauxJan 08, 2026 01:31 PM
962 Posts
Quote from JasonDB :
That's with almost any filtering system. The filters are the most expensive part because that's basically all it is and the rest of it is just a skeleton that holds the filters. This should be no surprise.
Just buy 2-3 sets and u will be set for awhile
Jan 08, 2026 01:31 PM
962 Posts
Joined Jan 2010
vineauxJan 08, 2026 01:31 PM
962 Posts
Quote from masterbw :
Correct, that's a falsied info that many people believed.
No different from religion eh?
3

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Jan 08, 2026 01:33 PM
962 Posts
Joined Jan 2010
vineauxJan 08, 2026 01:33 PM
962 Posts
Quote from bayon88 :
Any reason why?
Probably avoiding rejects? To reduce waste water?

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