APEC Water Systems vs BWT:Which is more popular?
In September 2026, BWT had more branded searches than APEC Water Systems among water filter brands worldwide. BWT had about 110,000 branded searches, while APEC Water Systems had 9,900. BWT made up 26.5% of all water filter brand searches we track, and APEC Water Systems accounted for 2.4%. When we asked ChatGPT and Google AI Overviews about water filter brands, APEC Water Systems appeared in three of the five answers and BWT in none.
Who do people search for more?
BWT, about 11 searches for every 1 for APEC Water Systems
Who does AI mention more?
APEC Water Systems, mentioned in 3 of 5 answers, BWT in 0
Who does AI recommend more?
APEC Water Systems, the only one of the two named
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Top water filter brands in ChatGPT and Google AI Overviews
In three ChatGPT questions and two Google AI Overviews, APEC Water Systems was mentioned in three out of five: in all three ChatGPT answers, but not in either of the two Google AI Overviews. BWT did not appear in any of the five answers.
Most recommended by AI
Brands get a higher ranking if they are mentioned earlier in the answers.
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- Aquasana3 of 5Named in 3 of 3 ChatGPT answersNamed in 0 of 2 Google answers
- APEC Water Systems3 of 5Named in 3 of 3 ChatGPT answersNamed in 0 of 2 Google answers
Waterdrop2 of 5Named in 1 of 3 ChatGPT answersNamed in 1 of 2 Google answers
PUR2 of 5Named in 2 of 3 ChatGPT answersNamed in 0 of 2 Google answers- BWT0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
Puretec0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
Philips0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
See every answer about water filter brands
5 answers
Asked ChatGPT
“Which water filter brand should I buy?”
Asked ChatGPT
“What are the best water filter brands?”
Asked ChatGPT
“What's the best water filter brand for clean drinking water?”
Searched Google, AI Overview
“water filters for home”
Searched Google, AI Overview
“pitcher water filter”
Brands are shown in the order each answer named them. The survey took place in the United States on October 21, 2026.
Is APEC Water Systems or BWT more popular in search?
This chart shows how often people search Google for APEC Water Systems and BWT by name. Each line represents a brand's share of searches for all eight water filter brands we track, month by month, from English-language searches worldwide.
Share of searches by month for BWT, APEC Water Systems. The figures are in the table below the chart.
View monthly share of searches table
| Month | Brita | BWT | Waterdrop | Aquasana | Puretec | APEC Water Systems | Philips | PUR |
|---|---|---|---|---|---|---|---|---|
| Oct 2025 | 47.9% | 26.2% | 9.9% | 7.9% | 3.7% | 2.4% | 1.9% | 0.21% |
| Nov 2025 | 47.6% | 26% | 9.8% | 7.8% | 3.9% | 2.3% | 2.3% | 0.17% |
| Dec 2025 | 50.4% | 22.7% | 10.5% | 8.3% | 3.4% | 2.5% | 2% | 0.18% |
| Jan 2026 | 45.7% | 25% | 11.5% | 9.2% | 3.8% | 2.3% | 2.3% | 0.16% |
| Feb 2026 | 45.4% | 24.9% | 11.4% | 9.1% | 4.1% | 2.7% | 2.2% | 0.16% |
| Mar 2026 | 47.8% | 26.2% | 9.9% | 7.9% | 3.9% | 2.4% | 1.9% | 0.17% |
| Apr 2026 | 50.2% | 22.6% | 10.4% | 8.3% | 3.8% | 2.5% | 2% | 0.18% |
| May 2026 | 45.1% | 30.3% | 9.3% | 7.4% | 3.7% | 2.2% | 1.8% | 0.16% |
| Jun 2026 | 48.6% | 26.6% | 10.1% | 6.6% | 3.6% | 2.4% | 2% | 0.17% |
| Jul 2026 | 51% | 23% | 10.5% | 6.9% | 3.9% | 2.5% | 2.1% | 0.22% |
| Aug 2026 | 54.9% | 20.2% | 9.3% | 7.4% | 3.6% | 2.2% | 2.2% | 0.22% |
| Sep 2026 | 48.4% | 26.5% | 10% | 6.5% | 3.6% | 2.4% | 2.4% | 0.17% |
How has the APEC Water Systems and BWT comparison changed over the last 12 months?
3 findings
- BWT was ahead of APEC Water Systems in every measured month of the 12 months ending September 2026.
- Across the 12 months ending September 2026, APEC Water Systems’ share of searches among water filter brands worldwide held steady at 2.4%, and its estimated monthly branded searches held steady at 9.9K.
- Across the 12 months ending September 2026, BWT’s share of searches among water filter brands worldwide moved from 26.2% to 26.5%, and its estimated monthly branded searches held steady at 110K.
How did search popularity change for water filter brands worldwide in September 2026?
1 change
In September 2026, BWT gained share of searches among water filter brands worldwide, from 20.2% to 26.5%.
How are branded searches counted?
2 search terms
Brandwave collects information about searches that people make online using APEC Water Systems’ and BWT’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.
APEC Water Systems
1 branded search term
- apec water systems
BWT
1 branded search term
- bwt
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