Aquasana vs Culligan ZeroWater:Which is more popular?
In September 2026, Culligan ZeroWater had more branded searches than Aquasana among water filter pitcher brands worldwide. Culligan ZeroWater had about 93,700 branded searches, while Aquasana had 27,100. Culligan ZeroWater made up 12.3% of all water filter pitcher brand searches we track, and Aquasana accounted for 3.6%. When we asked ChatGPT and Google AI Overviews about water filter pitcher brands, Aquasana and Culligan ZeroWater each appeared in two of the five answers. Aquasana was mentioned before Culligan ZeroWater in two out of three answers that named either.
Who do people search for more?
Culligan ZeroWater, about 3 searches for every 1 for Aquasana
Who does AI mention more?
Both were mentioned in 2 of 5 answers.
Who does AI recommend more?
Aquasana, named ahead of Culligan ZeroWater in 2 of 3 answers
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Top water filter pitcher brands in ChatGPT and Google AI Overviews
In three ChatGPT questions and two Google AI Overviews, Aquasana and Culligan ZeroWater were each mentioned in two out of five: in two of the three ChatGPT answers, but not in either of the two Google AI Overviews. Aquasana was listed before Culligan ZeroWater in two out of three answers that named either.
Most recommended by AI
Brands get a higher ranking if they are mentioned earlier in the answers.
Brita1st
Clearly Filtered2nd
LifeStraw3rd- Aquasana4th
PUR5th- Culligan ZeroWater6th
- APEC Water Systems7th
Mentioned by AI
Each dot is one answer, filled in when that answer mentions the brand.
- Brita5 of 5Named in 3 of 3 ChatGPT answersNamed in 2 of 2 Google answers
- LifeStraw3 of 5Named in 1 of 3 ChatGPT answersNamed in 2 of 2 Google answers
- Clearly Filtered3 of 5Named in 1 of 3 ChatGPT answersNamed in 2 of 2 Google answers
- Culligan ZeroWater2 of 5Named in 2 of 3 ChatGPT answersNamed in 0 of 2 Google answers
- Aquasana2 of 5Named in 2 of 3 ChatGPT answersNamed in 0 of 2 Google answers
- PUR2 of 5Named in 2 of 3 ChatGPT answersNamed in 0 of 2 Google answers
- APEC Water Systems2 of 5Named in 2 of 3 ChatGPT answersNamed in 0 of 2 Google answers
See every answer about water filter pitcher brands
5 answers
Asked ChatGPT
“Which water filter brand should I buy?”
Asked ChatGPT
“What are the best water filter pitcher brands?”
Asked ChatGPT
“What's the best water filter brand for tap water?”
Searched Google, AI Overview
“best water filter pitcher”
Searched Google, AI Overview
“best pitcher filter”
Brands are shown in the order each answer named them. The survey took place in the United States on October 21, 2026.
Is Aquasana or Culligan ZeroWater more popular in search?
This chart shows how often people search Google for Aquasana and Culligan ZeroWater by name. Each line represents a brand's share of searches for all seven water filter pitcher brands we track, month by month, from English-language searches worldwide.
Share of searches by month for Culligan ZeroWater, Aquasana. The figures are in the table below the chart.
View monthly share of searches table
| Month | Brita | LifeStraw | Culligan ZeroWater | Aquasana | PUR | Clearly Filtered | APEC Water Systems |
|---|---|---|---|---|---|---|---|
| Oct 2025 | 58.9% | 15.2% | 13.1% | 4.7% | 4.4% | 2.3% | 1.4% |
| Nov 2025 | 58.3% | 15.3% | 13.2% | 4.7% | 4.4% | 2.7% | 1.4% |
| Dec 2025 | 58.8% | 15.8% | 13.2% | 4.6% | 3.6% | 2.7% | 1.4% |
| Jan 2026 | 58.7% | 15% | 13.2% | 5.2% | 4% | 2.5% | 1.3% |
| Feb 2026 | 58.1% | 14.5% | 13.2% | 5.2% | 4.8% | 2.6% | 1.6% |
| Mar 2026 | 49.5% | 19.8% | 19.3% | 4% | 3.7% | 2.5% | 1.2% |
| Apr 2026 | 56.8% | 16% | 14.4% | 4.6% | 3.5% | 3.1% | 1.4% |
| May 2026 | 57% | 16.5% | 13.6% | 4.6% | 4.2% | 2.8% | 1.4% |
| Jun 2026 | 60.6% | 14.9% | 13.2% | 3.6% | 4.1% | 2.2% | 1.3% |
| Jul 2026 | 60% | 15.1% | 13% | 3.6% | 4.9% | 2.1% | 1.3% |
| Aug 2026 | 60.3% | 16.2% | 11.6% | 3.9% | 4.4% | 2.3% | 1.2% |
| Sep 2026 | 59% | 18% | 12.3% | 3.6% | 3.3% | 2.5% | 1.3% |
How has the Aquasana and Culligan ZeroWater comparison changed over the last 12 months?
3 findings
- Culligan ZeroWater was ahead of Aquasana in every measured month of the 12 months ending September 2026.
- Across the 12 months ending September 2026, Aquasana’s share of searches among water filter pitcher brands worldwide moved from 4.7% to 3.6%, and its estimated monthly branded searches moved from 33.1K to 27.1K.
- Across the 12 months ending September 2026, Culligan ZeroWater’s share of searches among water filter pitcher brands worldwide moved from 13.1% to 12.3%, and its estimated monthly branded searches moved from 92.5K to 93.7K.
How did search popularity change for water filter pitcher brands worldwide in September 2026?
2 changes
In September 2026, Culligan ZeroWater gained share of searches among water filter pitcher brands worldwide, from 11.6% to 12.3%.
In September 2026, Aquasana rose from 5th to 4th among water filter pitcher brands worldwide.
How are branded searches counted?
6 search terms
Brandwave collects information about searches that people make online using Aquasana’s and Culligan ZeroWater’s names. When viewed over time, estimated search volumes for these branded terms can be used to understand whether interest in the brands is growing, holding steady, or fading.
Aquasana
1 branded search term
- aquasana
Culligan ZeroWater
5 branded search terms
- culligan zerowater
- culligan zerowater pitcher
- zero water filter
- zerowater
- zerowater pitcher
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