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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)

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$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.
  • If you're not a student, there's also a free 1-Month Amazon Prime trial available.

Original Post

Written by babgaly | Staff
Product Info
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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

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Jan 09, 2026 09:04 PM
3,688 Posts
Joined Oct 2003
elnino2783Jan 09, 2026 09:04 PM
3,688 Posts
Quote from lionnoize :
Yea cuz calcium, magnesium, and potassium don't do anything right? You should teach us some more
The same people selling you alkaline water will try to sell you citrus/lemon water which is acidic.

Its all pseudo science
Jan 09, 2026 09:45 PM
1,838 Posts
Joined Dec 2005
hierolerJan 09, 2026 09:45 PM
1,838 Posts
Thanks Op!
Jan 09, 2026 09:50 PM
869 Posts
Joined Nov 2012
darksiderisingJan 09, 2026 09:50 PM
869 Posts
Quote from Fight_Fire_with_Fire :
Kind of a waste. Just contact your town water dept. Ask for the results of testing the town water. BUY a system specifically for what's in the water. No need to have a bunch of useless filters to waste money on.
It's ok that you don't have a use for this. Others do. For myself, I use an RO filter for water I use in humidifiers, a steam mop, a baby bottle washer, and for my carnivorous plants. Other people may just prefer the taste of their water with an RO filter compared to without it. Remember that not everything exists for you, specifically.
Jan 09, 2026 11:42 PM
44 Posts
Joined Apr 2020
ReaksOPJan 09, 2026 11:42 PM
44 Posts
is this hard to setup?
Jan 10, 2026 12:51 AM
5,590 Posts
Joined Mar 2013
SKV4mJan 10, 2026 12:51 AM
5,590 Posts
Never knew RO water was controversial
5
Jan 10, 2026 01:27 AM
4,686 Posts
Joined Mar 2010
firelikeiyaJan 10, 2026 01:27 AM
4,686 Posts

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

Quote from pn88 :
Deal is for tank options. Tankless is better, specially if placing under sink
Another opinion - Tank systems are better... especially systems that do not use proprietary filters. There's no need to buy into the hype to end up only paying higher maintenance costs and having a hard time finding replacement parts.
1
Pro
Jan 10, 2026 03:36 AM
7,238 Posts
Joined Sep 2014
MostBased
Pro
Jan 10, 2026 03:36 AM
7,238 Posts
Quote from lizard5102 :
For those into coffee, RO water is pretty much a must if you live in an area with bad municipal water. Bad water RUINS the taste of coffee, especially if you are using good quality beans like Gesha variety or anaerobic processed beans.I add some trace amounts of magnesium and epsom salt to RO water in order to improve the taste of the pourover coffee. For drinking and cooking, we prefer the RO water with no minerals added back. Usually our ppm reader will read ~40-45 with the recipe we use.For my espresso machine, we add a little bit more minerals as the manufacturer recommends not using pure, distilled or RO water without remineralization (voids the warranty). Usually the ppm reader will read ~100-125 with the recipe we use for espresso water.We have an APEC system with the high flow (model# RO-HI) and love it. Fills up our glass or coffee machine tank super fast. We bought it for $167+tax in July 2024, however it seems the prices are now north of $250 (thanks to tariffs?).The system has the standard 10" housing so you can use any generic cheaper filter from iSpring, EspressWater or other companies. The push-to-connect couplings make it very easy to self-install.
I had an APEC system at my last residence. was very happy with it - as much clean water as we needed, on demand.

"Upgraded" to a Waterdrop G2 tankless - which turned out to be a downgrade.
Super slow water flow, and not as effective as the APEC.
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Jan 10, 2026 05:08 AM
775 Posts
Joined Nov 2022
CleverCreature256Jan 10, 2026 05:08 AM
775 Posts
Quote from NaPra :
Just wanted to mention that alkaline water "benefits" are bunch of nonsense: https://www.mayoclinic.org/health...q-20058029
Scientifically stated, the human body does not handle a steady (drinking) diet of nearly pure dihydrogen monoxide. Aka distilled or reverse osmisis filtered water. It is not the "alkaline" property which is beneficial. That is BS. However, the necessary elements and components added to produce a drinkable water solution just happen to increase the PH.
Jan 10, 2026 05:12 AM
775 Posts
Joined Nov 2022
CleverCreature256Jan 10, 2026 05:12 AM
775 Posts
Quote from TPMJB :
I have an RO filter (not this brand) but it's a game changer for Texas water. The water doesn't have many "contaminants" but a substantial amount of sodium (500ppm). Great for appliances, not great for taste.Why do none of these advertise hooking up to a refrigerator? I did with mine, and drilled a small hole in the wall to get to the bathroom sink for the waste drain. Much more useful than an extra faucet for your sink.
I have a tankless unit attached to my refrigerator simply as I always drink from its chilled water dispenser and almost never from the faucet.
Jan 10, 2026 05:49 AM
104 Posts
Joined Nov 2025
ForHassanJan 10, 2026 05:49 AM
104 Posts
Does anyone know if this has PFAS or Prob 65 warning?
Jan 10, 2026 06:54 AM
1,354 Posts
Joined Sep 2010
dkd711Jan 10, 2026 06:54 AM
1,354 Posts
Proprietary filters on these models. Pass
Jan 10, 2026 06:55 AM
1,354 Posts
Joined Sep 2010
dkd711Jan 10, 2026 06:55 AM
1,354 Posts
Quote from TPMJB :
I mean, I suppose. Didn't want the sink connection though. If my drinking water is covered and ice as well, seems sufficient to me.
Cooking with clean water tastes so much better vs tap
Jan 10, 2026 06:59 AM
1,354 Posts
Joined Sep 2010
dkd711Jan 10, 2026 06:59 AM
1,354 Posts
Quote from cptsoviet :
Can vouch for Expresswater kit. Mine's been running great since 2017. The basic one costs $210 and should last for 1 year with jncluded filters.

You can buy 3 year supply of filters for $90 from their website. If your municipal water is not too bad, you can multiply filter life by 2.
https://www.expresswater.com/prod...t?variant=

You may be able to find it a little cheaper at home depot.

I can easily go 2 years on a membrane and as long as I change the prefilters once a year im still under 10ppm.

The $90 3-year kit will last me 6 years easily.

This is a generic kit using off the shelf parts. If you look up "reverse osmosis filter" you will find many results by different brands that all look the same, and you can expect them to work pretty much the same. In most cases the replacement filter kits are interchangeable too, but your mileage may vary.
Ditto!
Jan 10, 2026 07:04 AM
1,169 Posts
Joined Apr 2015
TPMJBJan 10, 2026 07:04 AM
1,169 Posts

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

Quote from fieldcar :
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.
Absolutely bunk. I had my water tested in a lab. Zero calcium or magnesium, meaning my water is very very soft. Nobody has died from drinking the water here because (shocker) you get the overwhelming majority of your minerals from food.

My water just has about 580 ppm of sodium in it. And an almost equal amount of bicarbonate. It tastes like saline. No way to filter out sodium without RO as sodium is typically used on the ion exchange surface of a water softener. Calcium and magnesium wreak havoc on plumbing so you wouldn't want to add it to take the sodium out with a water...uhh..."hardener".

If taste is your thing, sure. Spend the extra money on the alkaline marketing BS. But it gets neutralized as soon as it enters your stomach, from a tiny drop of gastric acid. "Alkaline water" and the "essential minerals" scam needs to end.
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.
Placebo effect if they're using alkaline water to treat reflux. The amount of hydroxide ions in "alkaline water" are so few that it won't even begin to outpace the acid in your throat.

Quote from dkd711 :
Cooking with clean water tastes so much better vs tap
Of course! All my cooking is done with RO water. I have an 8 gallon tank. Been using RO water for the last decade, though Texas is the only place I probably absolutely need it. Sucking on a hospital IV bag would probably quench my thirst better than tapwater here. At least it's so soft that a 30 year old water heater with zero maintenance is the norm.
Last edited by TPMJB January 10, 2026 at 12:07 AM.
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Jan 10, 2026 11:29 AM
49 Posts
Joined Dec 2022
greatvaluemeeseeksJan 10, 2026 11:29 AM
49 Posts
Quote from lionnoize :
Yea cuz calcium, magnesium, and potassium don't do anything right? You should teach us some more
Not in the amounts added by the filter. Trace minerals are often added to RO or distilled water for taste.

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