Grayl UltraPress vs Phoenix Gravity Water Filter System
33 facts in comparison
Based on 186 Reddit opinions. Close raceโFilter SystemPhoenix Gravity Water Filter System edges ahead.
186 opinions
Filter System leads by 5pts
VS
73%
B-
Based on
76 Redditors
Grayl UltraPress
~$179.95
76 opinions
tldr; Reddit highly recommends the Grayl UltraPress for its effective virus filtration, convenient travel use, and ease of use, despite being pricier and best for personal amounts.
Check pricesVS
Reddit's Pick
PG
Filter System
78%
B
Based on
110 Redditors
Winner
Phoenix Gravity Water Filter System
~$189
110 opinions
tldr; Reddit has mixed feelings about the Berkey Phoenix filter, with some praising its high quality and certification, while others question its performance claims and filter longevity.
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Why is Water Filter System better than Grayl UltraPress?
- Higher Reddit score (78% vs 73%)
- โญ High quality
- NSF/ANSI/CAN certified
- Needs to be replaced more than black Berkeys
Based on 186 Reddit opinions
Slight Edge
Reddit prefers the Filter SystemPhoenix Gravity Water Filter System
Winning by 5 points (78% vs 73%)
High quality
NSF/ANSI/CAN certified
Needs to be replaced more than black Berkeys
High confidence (186 mentions)
๐ฌReddit Sentiment
Based on 186 Reddit mentionsOverall Rating
Grayl UltraPress
7.3/10
76 mentions
Filter System
7.8/10
110 mentions
โ๏ธ
Head to Head
Grayl UltraPress
73%
78%
Filter System
Grayl UltraPress73%
Filter System78%
Filter System wins by 5 points
Key Specs
| Spec | Grayl UltraPress | Phoenix Gravity Water Filter System |
|---|---|---|
| Brand | GRAYL | PHOENIX GRAVITY |
| Manufacturer | GRAYL | Rama Pure Water Pvt Ltd |
| Color | Covert Black | Carbon Filters |
| Weight | 0.88125 Pounds | โ |
| Height | 2.755905509 inches | 15.35 inches |
Key Highlights
Grayl UltraPress
๐ Filters out viruses
โจ Nice form factor
๐ ๏ธ Easy to use
๐ Effective filtering
๐ง Convenient for drinking tap water anywhere
Some users report issues (28% negative)
Phoenix Gravity Water Filter SystemWinner
โญ High quality
โจ NSF/ANSI/CAN certified
โ ๏ธ Needs to be replaced more than black Berkeys
โ ๏ธ Questioned quality, manufactured in India
โ ๏ธ May not come close to performance claims
Some users report issues (22% negative)
๐Where They Rank
๐ฌWhat Redditors Actually Say
๐Historical Price Data
Grayl UltraPress
Phoenix Gravity Water Filter System
Grayl UltraPress
All-time low: $139.95(2025-08)
Phoenix Gravity Water Filter System
All-time low: $151.2(2025-11)
$1 below 90-day avg
Which is Better?
Phoenix Gravity Water Filter System Wins
78%
System
vs
73%
UltraPress
Close race, but Phoenix Gravity Water Filter System edges ahead by 5 points based on 186 Reddit opinions.
Why Filter SystemWinner
- โญ High quality
- โจ NSF/ANSI/CAN certified
- โ ๏ธ Needs to be replaced more than black Berkeys
- More discussed (110 vs 76)
Why Grayl UltraPress
- ๐ Filters out viruses
- โจ Nice form factor
โค๏ธThe Love/Hate Breakdown
Sentiment Breakdown
78%Positive
Positive
78%Neutral
0%Negative
22%Based on 110 Reddit opinions
Sentiment Breakdown
72%Positive
Positive
72%Neutral
0%Negative
28%Based on 76 Reddit opinions
Frequently Asked Questions
Which is better, Phoenix Gravity Water Filter System or Grayl UltraPress?
Based on 186 Reddit comments, Phoenix Gravity Water Filter System has a slight edge with 78% positive sentiment vs Grayl UltraPress's 73%. The difference is small, so both are solid choices.
Should I buy Phoenix Gravity Water Filter System or Grayl UltraPress?
Both have similar approval ratings (78% vs 73%), so focus on specific features, pricing, and what matters most to you.
What do Redditors love about Phoenix Gravity Water Filter System?
Reddit users highlight: High quality. NSF/ANSI/CAN certified. Needs to be replaced more than black Berkeys. With 110 mentions and 78% approval, it's a well-regarded choice in the community.
What do Redditors say about Grayl UltraPress?
Reddit users highlight: Filters out viruses. Nice form factor. Easy to use. With 76 mentions and 73% approval, it remains a popular alternative.
How many Reddit reviews were analyzed?
This comparison analyzed 186 Reddit comments: 110 about Phoenix Gravity Water Filter System and 76 about Grayl UltraPress. Data was sourced from Water Filters community discussions.
How accurate are these ratings?
Our sentiment analysis is approximately 80-85% accurate compared to manual review. Well-discussed products with many mentions tend to have more reliable scores than niche items with fewer data points.
Why trust Reddit over professional reviews?
Reddit users bought products with their own money and have no incentive to mislead. You're seeing hundreds of real opinions across different use cases, not just one reviewer's take. This crowdsourced approach surfaces both common praise and recurring complaints.
186 Reddit opinions analyzed ยท Last updated 4/11/2026