$151.99*: Express Water Under Sink Reverse Osmosis Alkaline Water Filtration System at Amazon

Amazon [amazon.com] has Express Water Under Sink Reverse Osmosis Alkaline Water Filtration System for $189.99 - 20% when you 'clip' the coupon on product page = $151.99.
Shipping is free.

Price
$118 lower (44% savings) than the list price of $269.99

Savings
Apply 20% coupon (check and activate [amazon.com])

*Previous 🔥Frontpage Deal at $152 with 60 Deal Score and 93 comments.

Customer reviews
4.6⭐ / 8,424 global ratings
500+ bought in past month

amazon.com/dp/B00MU20LN2 [amazon.com]

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Model: Express Water Alkaline Reverse Osmosis Water Filtration System - 10 Stage RO Mineralizing Purifier - Mineral, pH +, Antioxidant - Under Sink Water Filter with Remineralization - 50 GDP

Deal History

Sort: Most Recent

Post Date	Sold By	Sale Price	Activity
06/02/25	Amazon	$141	2
05/22/25	Amazon	$152 frontpage	93
04/15/24	Home Depot	$152	4
11/21/23	Amazon	$150	23

Current Prices

Sort: Lowest to Highest | Last Updated 7/8/2025, 10:27 AM

Sold By	Sale Price
Amazon	$189.99

4 Comments

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BigBG

8h ago

941 Posts

Joined Mar 2023

8h ago

BigBG

8h ago

941 Posts

Buy the s**t outta that

1

dhanushshai

3h ago

172 Posts

Joined Nov 2016

3h ago

dhanushshai

3h ago

172 Posts

What about installing it?

hellagrant

1h ago

815 Posts

Joined Dec 2009

1h ago

hellagrant

1h ago

815 Posts

Quote from dhanushshai

:

What about installing it?

Installation is fairly diy, the only advanced part is drilling a hole on the counter. Will require a special drill bit.

Alternatively you can just replace the kitchen faucet to a new one that has a special part for this type of installation.

Or if you have those small sinks in a kitchen that is secondary, just turn that into a reverse osmosis only water faucet.

quickstart88

39m ago

128 Posts

Joined Aug 2015

39m ago

quickstart88

39m ago

128 Posts

what's the ratio to water waste?

Rating:	(4.6 out of 5 stars)
Reviews:	8,424 Amazon Reviews
Manufacturer:	Express Water
Model Number:	ROALK**
Product SKU:	B00MU20LN2
UPC:	705332529525
ASIN:	B00MU20LN2
Brand:	EXPRESS WATER
Item Dimensions LxWxH:	15 x 5 x 17 Inches
Item Weight:	29.5 Pounds
Item model number:	ROALK**
Manufacturer:	Express Water

$151.99*: Express Water Under Sink Reverse Osmosis Alkaline Water Filtration System at Amazon

$152

$270

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$151.99*: Express Water Under Sink Reverse Osmosis Alkaline Water Filtration System at Amazon

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