Doulton vs Zip Water:Which is more popular?
In September 2026, Doulton had more branded searches than Zip Water among water filter brands in New Zealand. Doulton had about 720 branded searches, while Zip Water had 170. Doulton made up 4.4% of all water filter brand searches we track, and Zip Water accounted for 1%. When we asked ChatGPT and Google AI Overviews about water filter brands, Doulton appeared in four of the five answers and Zip Water in none.
Who do people search for more?
Doulton, about 4 searches for every 1 for Zip Water
Who does AI mention more?
Doulton, mentioned in 4 of 5 answers, Zip Water in 0
Who does AI recommend more?
Doulton, the only one of the two named
Follow Doulton vs Zip Water and get free monthly updates on what changed
By continuing you'll get index updates and occasional product news from Brandwave. Unsubscribe any time. Privacy
Top water filter brands in ChatGPT and Google AI Overviews
In three ChatGPT questions and two Google AI Overviews, Doulton was mentioned in four out of five: in all three ChatGPT answers and in one of the two Google AI Overviews. Zip Water 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.
Brita4 of 5Named in 3 of 3 ChatGPT answersNamed in 1 of 2 Google answers
Puretec4 of 5Named in 3 of 3 ChatGPT answersNamed in 1 of 2 Google answers- Doulton4 of 5Named in 3 of 3 ChatGPT answersNamed in 1 of 2 Google answers
Philips0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
Hydroflow0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
Waters Co0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
Billi0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
Zip Water0 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 in New Zealand?”
Asked ChatGPT
“What are the best water filter brands in New Zealand?”
Asked ChatGPT
“What's the best water filter brand in New Zealand for clean drinking water?”
Searched Google, AI Overview
“best water filter”
Searched Google, AI Overview
“home water filter nz”
Brands are shown in the order each answer named them. The survey took place in New Zealand on October 21, 2026.
Is Doulton or Zip Water more popular in search?
This chart shows how often people search Google for Doulton and Zip Water by name. Each line represents a brand's share of searches for all eight water filter brands we track, month by month, from searches in New Zealand.
Share of searches by month for Doulton, Zip Water. The figures are in the table below the chart.
View monthly share of searches table
| Month | Brita | Philips | Puretec | Hydroflow | Doulton | Waters Co | Billi | Zip Water |
|---|---|---|---|---|---|---|---|---|
| Oct 2025 | 37.6% | 30% | 15.1% | 6.5% | 4.7% | 3.5% | 1.7% | 0.78% |
| Nov 2025 | 38.9% | 31% | 13.3% | 6% | 4.3% | 4.2% | 1.5% | 0.72% |
| Dec 2025 | 36% | 34.6% | 13.1% | 5.5% | 5.5% | 3.6% | 1.1% | 0.63% |
| Jan 2026 | 37.7% | 31.9% | 13.6% | 6% | 5.3% | 3.3% | 1.4% | 0.9% |
| Feb 2026 | 41.8% | 28.9% | 13.3% | 6.6% | 3.9% | 3.1% | 1.5% | 0.86% |
| Mar 2026 | 39.6% | 27.8% | 14.2% | 8.5% | 3.8% | 3.6% | 1.7% | 0.85% |
| Apr 2026 | 38% | 34% | 12.6% | 6.1% | 4.4% | 2.4% | 1.6% | 0.8% |
| May 2026 | 36.7% | 36.4% | 12.1% | 6% | 4.3% | 2.1% | 1.6% | 0.84% |
| Jun 2026 | 38.7% | 34.7% | 12.1% | 5.6% | 4.1% | 2.5% | 1.4% | 0.85% |
| Jul 2026 | 39.8% | 33.7% | 12.3% | 6% | 3.5% | 2.6% | 1.2% | 0.95% |
| Aug 2026 | 37.9% | 34.9% | 12.6% | 6.1% | 3.6% | 2.4% | 1.5% | 0.98% |
| Sep 2026 | 36.8% | 32% | 12.7% | 8% | 4.4% | 3.5% | 1.6% | 1% |
How has the Doulton and Zip Water comparison changed over the last 12 months?
3 findings
- Doulton was ahead of Zip Water in every measured month of the 12 months ending September 2026.
- Across the 12 months ending September 2026, Doulton’s share of searches among water filter brands in New Zealand moved from 4.7% to 4.4%, and its estimated monthly branded searches held steady at 720.
- Across the 12 months ending September 2026, Zip Water’s share of searches among water filter brands in New Zealand moved from 0.78% to 1%, and its estimated monthly branded searches moved from 120 to 170.
How did search popularity change for New Zealand water filter brands in September 2026?
2 changes
In September 2026, Doulton gained share of searches among water filter brands in New Zealand, from 3.6% to 4.4%.
Estimated monthly branded searches for Zip Water in New Zealand rose 41.7% over 12 measured months, from 120 to 170 in September 2026.
How are branded searches counted?
5 search terms
Brandwave collects information about searches that people make online using Doulton’s and Zip Water’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.
Other head-to-heads among water filter brands
Put your own brand in this comparison
Brandwave tracks your branded demand next to the rival you actually watch, with your campaigns, spend and outcomes on the same timeline.