Slickdeals is community-supported.  We may get paid by brands for deals, including promoted items.
frontpagebabgaly | Staff posted Jan 07, 2026 12:42 AM
  1. Deal Image
Item 1 of 4
  1. Deal Image
  2. Deal Image
  3. Deal Image
  4. Deal Image
Item 1 of 4
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
77 Comments 19,672 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
+68
Good Deal
Get Deal at Amazon

Leave a Comment

Unregistered (You)

Top Comments

NaPra
1861 Posts
2591 Reputation
Just wanted to mention that alkaline water "benefits" are bunch of nonsense: https://www.mayoclinic.org/health...q-20058029
fieldcar
635 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
120 Posts
46 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.

76 Comments

Sign up for a Slickdeals account to remove this ad.

Pro
Expert
This user is an Expert in Tech & Electronics
Jan 07, 2026 04:08 AM
1,861 Posts
Joined Nov 2016
NaPra
Pro
Expert
This user is an Expert in Tech & Electronics
Jan 07, 2026 04:08 AM
1,861 Posts

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

Just wanted to mention that alkaline water "benefits" are bunch of nonsense: https://www.mayoclinic.org/health...q-20058029
6
9
Jan 07, 2026 04:20 AM
1,093 Posts
Joined Oct 2010

This comment has been rated as unhelpful by Slickdeals users.

Pro
Jan 07, 2026 04:24 AM
923 Posts
Joined Nov 2015
pn88
Pro
Jan 07, 2026 04:24 AM
923 Posts

Our community has rated this post as helpful. If you agree, why not thank pn88

Deal is for tank options. Tankless is better, specially if placing under sink
2
3
Jan 07, 2026 04:54 AM
292 Posts
Joined Dec 2007
masterbwJan 07, 2026 04:54 AM
292 Posts
Quote from NaPra :
Just wanted to mention that alkaline water "benefits" are bunch of nonsense: https://www.mayoclinic.org/health...q-20058029
Correct, that's a falsied info that many people believed.
1
Jan 07, 2026 08:21 AM
105 Posts
Joined May 2020
Artc8888Jan 07, 2026 08:21 AM
105 Posts

Our community has rated this post as helpful. If you agree, why not thank 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....
1
Jan 07, 2026 12:03 PM
707 Posts
Joined Jan 2017
JasonDBJan 07, 2026 12:03 PM
707 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....
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.
3
Jan 07, 2026 01:02 PM
36 Posts
Joined Aug 2008
ionzJan 07, 2026 01:02 PM
36 Posts
I was thinking of getting a RO system for a saltwater tank. The initial cost looks good but I think reviews complained about the motor failing and filter pricing. Anyone have a recommendation of what they use?

Sign up for a Slickdeals account to remove this ad.

Jan 07, 2026 01:40 PM
14,638 Posts
Joined Jul 2006
ben_r_Jan 07, 2026 01:40 PM
14,638 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....
Which RO system has clear canister filters?
Jan 07, 2026 01:41 PM
118 Posts
Joined Apr 2019
FantasticArm1685Jan 07, 2026 01:41 PM
118 Posts
I got rid of my RO and put in a simple filter.
3
Jan 07, 2026 01:51 PM
6,347 Posts
Joined Jan 2006
Blade2000Jan 07, 2026 01:51 PM
6,347 Posts
Quote from NaPra :
Just wanted to mention that alkaline water "benefits" are bunch of nonsense: https://www.mayoclinic.org/health...q-20058029 [mayoclinic.org]
I think anyone with common sense knows this.
7
Jan 07, 2026 01:55 PM
120 Posts
Joined Jul 2012
pwnkingJan 07, 2026 01:55 PM
120 Posts

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

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.
5
1
Jan 07, 2026 02:25 PM
13 Posts
Joined Oct 2020
bayon88Jan 07, 2026 02:25 PM
13 Posts
Quote from FantasticArm1685 :
I got rid of my RO and put in a simple filter.
Any reason why?
Jan 07, 2026 02:48 PM
667 Posts
Joined Jun 2012
OPTICSOURCEJan 07, 2026 02:48 PM
667 Posts
Quote from NaPra :
Just wanted to mention that alkaline water "benefits" are bunch of nonsense: https://www.mayoclinic.org/health...q-20058029
It's worse than nonsense. If you don't supplement the alkaline water with electrolytes regularly, you will have a host of unwelcome side effects.
1
Pro
Expert
This user is an Expert in Tech & Electronics
Jan 07, 2026 02:51 PM
1,861 Posts
Joined Nov 2016
NaPra
Pro
Expert
This user is an Expert in Tech & Electronics
Jan 07, 2026 02:51 PM
1,861 Posts
Quote from lionnoize :
Yea cuz calcium, magnesium, and potassium don't do anything right? You should teach us some more
I'm afraid that I wouldn't be strong enough to pull you out from the deep pit you live in.
3
5

Sign up for a Slickdeals account to remove this ad.

Jan 07, 2026 03:29 PM
635 Posts
Joined Nov 2017
fieldcarJan 07, 2026 03:29 PM
635 Posts

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

Quote from NaPra :
Just wanted to mention that alkaline water "benefits" are bunch of nonsense: https://www.mayoclinic.org/health...q-20058029
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.
5
2

Leave a Comment

Unregistered (You)

Related Searches

Free ShippingHome & Home ImprovementSmall AppliancesAmazon

Popular Deals

See All
Found by Eragorn
Yesterday 09:26 PM
$17$3348% off16-Oz Stanley Everyday Tumbler (Ash) $16.50 + Free Shipping w/ Prime or on $35+
0
Found by idk_then
Yesterday 08:27 PM
$49$14065% offadidas Women's Supernova Rise 2 Running Shoes (Various) $49 + Free Shipping
0
Found by wileysmiley
Today 12:52 AM
$4.64$9.9953% offGold Bond Cocoa Butter Glow Daily Hydrating Lotion with Shea Butter, 14 oz. - $4.64 w/ S&S
0
Found by Eragorn
Yesterday 08:21 PM
$4.38$7.3040% offSpin Master Games Where on The Scale Board Game (Ages 18+) $4.38 + Free Shipping w/ Prime or on $35+
3
Found by Navy-Wife
Yesterday 03:32 PM
$12$2552% offTOENNESEN 4-in-1 up to 131W Retractable USB-C + Lightning Car Charger w/ LED Light (Black) $12.49, (Grey) $12.99 + Free Shipping w/ Prime or on $35+
4

Trending Deals

See All
Found by Dr.W
Yesterday 10:46 AM
$166$25033% offDell Latitude 5480 (Refurb): 13.9" FHD, i5-7300U, 16GB RAM, 256GB SSD, Win 11 Pro $165.99
31
Found by earthdogmonster
Yesterday 05:02 PM
Xfinity rewards members - Free EA Sports FC26 Xfinity kit
10
Found by SickerDealer
Yesterday 11:57 PM
$20$4050% offOdoland 15-Piece Camping Cookware Set $19.99
1
Found by niki4h
Today 12:50 AM
$198$34843% offBetter Homes & Gardens Juliet Arch Accent Cabinet (Light Honey Finish) $198 + Free Shipping
1
Found by CozyEm
Yesterday 10:39 PM
$7.50$3075% offFRAM Titanium Premium Cabin Air Filter $7.5
2