Slickdeals is community-supported.  We may get paid by brands for deals, including promoted items.
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
181 Comments 67,803 Views
Get Deal at Amazon
Good Deal
Save
Share
Deal Details
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.

Original Post

Written by babgaly | Staff
Product Info
Community Notes
About the Poster
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.

Original Post

Written by babgaly | Staff

Community Voting

Deal Score
+213
Good Deal
Get Deal at Amazon

Leave a Comment

Unregistered (You)

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

Sign up for a Slickdeals account to remove this ad.

Jan 08, 2026 08:39 PM
846 Posts
Joined Aug 2012
riffdexJan 08, 2026 08:39 PM
846 Posts
Quote from Azrael_the_Cat :
Alkaline water is so lightly Alkaline it has no impact on acids in the esophagus. You should look into what it means to have a PH of 7.5 or 8 when mixed with liquid of a PH of 3 and understand how the chemistry works.
We all make Alkaline water when we add a pinch of baking soda to it.

Your comment demonstrates a profound lack of knowledge on this topic. Alkaline water is not a standardized term that means a specific PH range. I can make Alkaline water of various PH and it's all still considered "Alkaline water", as long as the PH is greater than 7. Alkaline water is by definition, a water imbued with alkaline properties - with the ability to neutralize acidity. I understand the chemistry just fine, as such I wouldn't make an erroneous statement that alkaline water is definitionally a specific "lightly Alkaline" PH range. Yup, baking soda is an easy way to make water alkaline.
Last edited by riffdex January 8, 2026 at 02:46 PM.
4
Jan 08, 2026 08:40 PM
12 Posts
Joined Feb 2020
NervousCrib2934Jan 08, 2026 08:40 PM
12 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....
Please don't buy a clear canister. Lived in a third world country where this was touted as a feature but the filter was above the sink, next to a window. The filter went from white to green in a couple of months due to algae growth with exposure to sunlight.
1
Jan 08, 2026 09:50 PM
179 Posts
Joined Dec 2024
LovelyGoat9932Jan 08, 2026 09:50 PM
179 Posts
Quote from Blade2000 :
I think anyone with common sense knows this.
This is 'Murica, where people shoved slices of raw potato into their socks to ward off Covid while refusing the vaccines available.

About 30-40% of the country gets hilariously awful (and often dangerous) medical advice from Faceplant Mom Groups.

Common sense is not even remotely common any longer.
1
2
8
Jan 08, 2026 10:06 PM
1,292 Posts
Joined Nov 2012
i_max2k2Jan 08, 2026 10:06 PM
1,292 Posts
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.
I like my water tasteless. I have had the tankless system from the same company for nearly 2 years, at first I got the Alkaline version, I hated the after taste of calcium so I replaced it with the neutral one, like it much better. Recommend getting the regular one and if you don't like the taste only the consider gettin the Alkaline addition.
Jan 08, 2026 10:15 PM
2,075 Posts
Joined Jan 2015
khronosJan 08, 2026 10:15 PM
2,075 Posts
Water? Like from the toilet?!
1
Jan 08, 2026 10:22 PM
869 Posts
Joined Nov 2012
darksiderisingJan 08, 2026 10:22 PM
869 Posts
Quote from jaimelobo :
How do these plants (in natural environment) get this pure, distilled water on which to thrive?
Carnivorous plants are carnivorous because they live in nutrient depleted boggy soils and acquire nutrients from the insects they trap and dissolve in the various mechanisms different genera and species employ.
2
Jan 08, 2026 10:24 PM
869 Posts
Joined Nov 2012
darksiderisingJan 08, 2026 10:24 PM
869 Posts
Quote from RockfordRoc :
Thinking about getting an under sink RO filtering system for a house we are moving to. It has well water. Can someone please recommend a good under sink RO system for well water?
Did the well water test for high mineral content or something? Well water doesn't inherently need filtering like this. Our well water is very nice for drinking.

Sign up for a Slickdeals account to remove this ad.

Jan 08, 2026 10:28 PM
869 Posts
Joined Nov 2012
darksiderisingJan 08, 2026 10:28 PM
869 Posts
Quote from BacksKnackin :
The placebo is strong with this one 😄
If a placebo is effectively causing positive change, that is effective medicine by definition. The mind can trigger physiological changes in the body, as it is a physical part of the body itself which interacts with the rest of it chemically.
2
Jan 09, 2026 12:59 AM
172 Posts
Joined Feb 2007
lacydill7@yahooJan 09, 2026 12:59 AM
172 Posts
Quote from ben_r_ :
Which RO system has clear canister filters?
wondering this myself? I have one of these that I absolutely love but am never sure if amd when i should replace my filters we love it so much we got our new refrigerator without water
Jan 09, 2026 01:07 AM
172 Posts
Joined Feb 2007
lacydill7@yahooJan 09, 2026 01:07 AM
172 Posts
hijacking's this post because I got a used high end RO system with my used water softener, it has 3 filter s like this but i have no idea how to take care of it how often to change filters etc ? A friend of mine changed them once for me last year , i have had it 6 years, water tastes great idk lol any advice?
Jan 09, 2026 01:13 AM
5,590 Posts
Joined Mar 2013
SKV4mJan 09, 2026 01:13 AM
5,590 Posts
Alkaline water tastes crisp. Nothing like a refreshing glass of iced alkaline water
Last edited by SKV4m January 8, 2026 at 06:16 PM.
1
Jan 09, 2026 01:14 AM
5,590 Posts
Joined Mar 2013
SKV4mJan 09, 2026 01:14 AM
5,590 Posts
nevermind
Last edited by SKV4m January 9, 2026 at 12:07 AM.
2
Jan 09, 2026 01:58 AM
1,388 Posts
Joined Mar 2016
AudizzzJan 09, 2026 01:58 AM
1,388 Posts
Quote from RockfordRoc :
Thinking about getting an under sink RO filtering system for a house we are moving to. It has well water. Can someone please recommend a good under sink RO system for well water?
I have iSpring RCC7AK, 6 stages. For my well water works great. My well water has ~600 ppm, ispring reduces it to 40ppm
Jan 09, 2026 01:58 AM
89 Posts
Joined Jun 2025
informed-consumerJan 09, 2026 01:58 AM
89 Posts
Quote from MerryHome3554 :
you just explained physics to slickdealers
oh boy now i know physics?

Sign up for a Slickdeals account to remove this ad.

Jan 09, 2026 02:08 AM
89 Posts
Joined Jun 2025
informed-consumerJan 09, 2026 02:08 AM
89 Posts
Quote from khronos :
Water? Like from the toilet?!
bring the brawndo!

Leave a Comment

Unregistered (You)

Popular Deals

Trending Deals