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iSpring RCC7
Express Water ROALK-10DCG 100GPD
See Top Ranked Under Sink Water Filters

iSpring RCC7 vs Express Water ROALK Water Filtration System

Analysis:

The iSpring RCC7 makes for a great purchase at the $150 budget. The Express Water ROALK-10DCG 100GPD, however, is a bad choice for most people and isn't worth its asking price.

The iSpring RCC7 was loved by reviewers at TechGearLab, a highly trusted source that performs reliable in-depth testing. It did great in its "Best Water Filter of 2021" roundup where it was named its "Best Under the Sink Filter", which, in itself, makes it a product worth considering.

As for the Express Water ROALK-10DCG 100GPD - it wasn't considered to be a good enough purchase to earn a spot in any roundups conducted by sources that perform objective hands-on testing, which typically indicates that a product isn't worth its asking price.

We tried doing a direct iSpring RCC7 vs. Express Water ROALK-10DCG 100GPD review score comparison but couldn't find any sources that tested both.

Next, we took a look at which sources liked them best and found that the iSpring RCC7 most impressed the reviewers at TechGearLab, who gave it a score of 10, whereas the Express Water ROALK-10DCG 100GPD did best in its waterfilterguru.com review - it scored 9.6 points.

Comparison of expert ratings
Highly Recommended
Recommended
Mentioned
Not Mentioned
TechGearLab
BestReviews
BestAdvisor
New York Magazine
waterfilterguru.com
houseandbeyond.org
Tech. Specs Comparison
iSpring RCC7
$188
Express Water ROALK-10DCG 100GPD
$197
Capacity
27375 (gal)
18250 (gal)
Filtration Stages
5
10
Excellent expert review scores
9.4
Avg. Review Score
Score
Excellent expert review scores
9.6
Avg. Review Score
Score
Recommended by trusted experts
TechGearLab
Highly Trusted Source
Depth of
analysis
Yes
In-house
Testing
Best Under the Sink Filter
in “Best Water Filter of 2021” 
Last updated: 19 Jul 2021

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