---
title: "Water tank brands in New Zealand: Which are most popular?"
description: "Water tank brands New Zealand homes and farms buy. Share of Search among Promax, Devon, Devan Tanks, Bailey, Thin Tanks, Tankworks and Rhino Water Tanks, the water tank brands Brandwave compares in New Zealand, using the same methodology, market, and reporting period. Branded searches tell you how often people look for a brand by name or related terms. Comparing these searches across competitors helps you see how popular each brand is over time."
canonical: "https://gobrandwave.com/demand/nz/categories/nz-water-tank-brands"
publisher: "Brandwave"
---

# Water tank brands in New Zealand: Which are most popular?

Water tank brands New Zealand homes and farms buy. Share of Search among Promax, Devon, Devan Tanks, Bailey, Thin Tanks, Tankworks and Rhino Water Tanks, the water tank brands Brandwave compares in New Zealand, using the same methodology, market, and reporting period. Branded searches tell you how often people look for a brand by name or related terms. Comparing these searches across competitors helps you see how popular each brand is over time.

## Key facts

- **Competitive set**: Water tank brands
- **Market**: New Zealand
- **Brands compared**: 7
- **Month measured**: Oct 2026
- **Highest Share of Search**: Promax, 30.7%

## Which brand is most popular in search among water tank brands in New Zealand?

- In October 2026, Promax was the most searched among water tank brands in New Zealand, with an estimated 2.9K branded searches, 30.7% of all searches for the seven tracked by the Brandwave Brand Demand Index.
- Devon is in 2nd place, 3.6 percentage points behind at 27.1%.
- Across the 12 months ending October 2026, Promax’s share of searches among water tank brands in New Zealand increased from 27.3% to 30.7%.
- Across the 12 months ending October 2026, Devon’s share of searches among water tank brands in New Zealand decreased from 28.8% to 27.1%.
- Across the 12 months ending October 2026, Devan Tanks’ share of searches among water tank brands in New Zealand decreased from 27.7% to 25.3%.
- Across the 12 months ending October 2026, Bailey’s share of searches among water tank brands in New Zealand increased from 13.6% to 14.3%.
- Across the 12 months ending October 2026, Promax’s share of searches among water tank brands in New Zealand peaked at 33% in September 2026 and was lowest at 27.3% in November 2025.
- Across the 12 months ending October 2026, Devon’s share of searches among water tank brands in New Zealand peaked at 29.2% in June 2026 and was lowest at 25.6% in September 2026.
- Across the 12 months ending October 2026, Devan Tanks’ share of searches among water tank brands in New Zealand peaked at 27.7% in November 2025 and was lowest at 24.7% in September 2026.
- Across the 12 months ending October 2026, Bailey’s share of searches among water tank brands in New Zealand peaked at 15.7% in January 2026 and was lowest at 12.6% in June 2026.
- Across the 12 months ending October 2026, Thin Tanks’ share of searches among water tank brands in New Zealand peaked at 3.4% in April 2026 and was lowest at 2.3% in June 2026.
- Across the 12 months ending October 2026, Promax rose from 3rd to 1st among water tank brands in New Zealand.
- Across the 12 months ending October 2026, Devon fell from 1st to 2nd among water tank brands in New Zealand.
- Across the 12 months ending October 2026, Devan Tanks fell from 2nd to 3rd among water tank brands in New Zealand.
- Across the 12 months ending October 2026, Tankworks rose from 7th to 6th among water tank brands in New Zealand.
- Across the 12 months ending October 2026, Rhino Water Tanks fell from 6th to 7th among water tank brands in New Zealand.
- Across the 12 months ending October 2026, Thin Tanks held steady: its share of searches among water tank brands in New Zealand moved less than 0.5 percentage points.

## Top water tank brands in ChatGPT and Google AI Overviews

In Brandwave's three ChatGPT questions and two Google AI Overviews, Promax and Bailey appeared every time. Promax was recommended most often, coming first in one out of four answers that gave a list. Devan Tanks and Bailey tied for second. Devon, which ranked second in searches, was not mentioned at all.

Brands get a higher AI rank if they are mentioned earlier in the answers that list options.

| Brand | AI rank | ChatGPT answers that named it | Google AI Overviews that named it | All answers that named it |
| --- | --- | --- | --- | --- |
| Promax | 1st | 3 of 3 | 2 of 2 | 5 of 5 |
| Devan Tanks | 2nd | 3 of 3 | 0 of 2 | 3 of 5 |
| Bailey | 2nd | 3 of 3 | 2 of 2 | 5 of 5 |
| Devon | Not ranked | 0 of 3 | 0 of 2 | 0 of 5 |
| Thin Tanks | Not ranked | 0 of 3 | 1 of 2 | 1 of 5 |
| Tankworks | Not ranked | 0 of 3 | 0 of 2 | 0 of 5 |
| Rhino Water Tanks | Not ranked | 0 of 3 | 0 of 2 | 0 of 5 |

## Every AI answer about water tank brands

- Asked ChatGPT "Which water tank brand should I buy in New Zealand?": 1. Devan Tanks, 2. Promax, 3. Bailey
- Asked ChatGPT "What are the best water tank brands in New Zealand?": 1. Promax, 2. Bailey, 3. Devan Tanks
- Asked ChatGPT "What's the best water tank brand in New Zealand for rainwater storage?": 1. Devan Tanks, 2. Promax, 3. Bailey
- Searched Google, AI Overview "water tanks nz": 1. Bailey, 2. Promax
- Searched Google, AI Overview "rainwater tank nz": 1. Promax, 2. Bailey, 3. Thin Tanks

Not named in any answer: Devon, Tankworks and Rhino Water Tanks.

Brands are listed in the order each answer named them. The answers were collected in New Zealand on October 21, 2026.

## Compare search popularity between leading brands

- [Promax vs Devon: compare search popularity](/demand/nz/compare/devon-vs-promax): 30.7% against 27.1% Share of Search.
- [Promax vs Devan Tanks: compare search popularity](/demand/nz/compare/devan-tanks-vs-promax): 30.7% against 25.3% Share of Search.
- [Promax vs Bailey: compare search popularity](/demand/nz/compare/bailey-vs-promax): 30.7% against 14.3% Share of Search.
- [Promax vs Thin Tanks: compare search popularity](/demand/nz/compare/promax-vs-thin-tanks): 30.7% against 2.4% Share of Search.
- [Devon vs Devan Tanks: compare search popularity](/demand/nz/compare/devan-tanks-vs-devon): 27.1% against 25.3% Share of Search.
- [Devon vs Bailey: compare search popularity](/demand/nz/compare/bailey-vs-devon): 27.1% against 14.3% Share of Search.
- [Devon vs Thin Tanks: compare search popularity](/demand/nz/compare/devon-vs-thin-tanks): 27.1% against 2.4% Share of Search.
- [Devan Tanks vs Bailey: compare search popularity](/demand/nz/compare/bailey-vs-devan-tanks): 25.3% against 14.3% Share of Search.
- [Devan Tanks vs Thin Tanks: compare search popularity](/demand/nz/compare/devan-tanks-vs-thin-tanks): 25.3% against 2.4% Share of Search.
- [Bailey vs Thin Tanks: compare search popularity](/demand/nz/compare/bailey-vs-thin-tanks): 14.3% against 2.4% Share of Search.

## How did search popularity change for New Zealand water tank brands in October 2026?

- In October 2026, Devon gained share of searches among water tank brands in New Zealand, from 25.6% to 27.1%.
- In October 2026, Devan Tanks gained share of searches among water tank brands in New Zealand, from 24.7% to 25.3%.
- In October 2026, Promax lost share of searches among water tank brands in New Zealand, from 33% to 30.7%.
- Bailey’s share of searches among water tank brands in New Zealand has gained ground for 3 months in a row, from 12.7% to 14.3% in October 2026.
- In October 2026, Tankworks rose from 7th to 6th among water tank brands in New Zealand.
- In October 2026, Rhino Water Tanks fell from 6th to 7th among water tank brands in New Zealand.
- Estimated monthly branded searches for Thin Tanks in New Zealand rose 15% over 12 measured months, from 200 to 230 in October 2026.

## Which water tank brands do people search for most?

| Rank | Brand | Share of Search | Estimated monthly branded searches | Change vs prior month | Owned by |
| --- | --- | --- | --- | --- | --- |
| 1 | Promax | 30.7% | 2.9K | -9.3% | Promax Plastics |
| 2 | Devon | 27.1% | 2.6K | +3.2% | Devon Tanks |
| 3 | Devan Tanks | 25.3% | 2.4K | 0.0% | Devan Tanks |
| 4 | Bailey | 14.3% | 1.4K | -0.7% | Bailey Tanks |
| 5 | Thin Tanks | 2.4% | 230 | -8.0% | Thin Tanks |
| 6 | Tankworks | 0.11% | 10 | — | Tankworks |
| 7 | Rhino Water Tanks | 0% | 0 | -100.0% | Rhino Water Tanks |

## Historical estimated branded-search demand

| Month | Brand | Estimated monthly branded searches | Share of Search | Rank |
| --- | --- | --- | --- | --- |
| Nov 2025 | Devon | 2.5K | 28.8% | 1 |
| Nov 2025 | Devan Tanks | 2.4K | 27.7% | 2 |
| Nov 2025 | Promax | 2.4K | 27.3% | 3 |
| Nov 2025 | Bailey | 1.2K | 13.6% | 4 |
| Nov 2025 | Thin Tanks | 200 | 2.3% | 5 |
| Nov 2025 | Rhino Water Tanks | 10 | 0.12% | 6 |
| Nov 2025 | Tankworks | 10 | 0.12% | 7 |
| Dec 2025 | Devon | 1.7K | 27.6% | 1 |
| Dec 2025 | Promax | 1.7K | 27.6% | 2 |
| Dec 2025 | Devan Tanks | 1.6K | 26.4% | 3 |
| Dec 2025 | Bailey | 900 | 14.9% | 4 |
| Dec 2025 | Thin Tanks | 190 | 3.1% | 5 |
| Dec 2025 | Rhino Water Tanks | 10 | 0.17% | 6 |
| Dec 2025 | Tankworks | 10 | 0.17% | 7 |
| Jan 2026 | Promax | 2.1K | 28.1% | 1 |
| Jan 2026 | Devon | 2K | 27.4% | 2 |
| Jan 2026 | Devan Tanks | 1.9K | 25.9% | 3 |
| Jan 2026 | Bailey | 1.1K | 15.7% | 4 |
| Jan 2026 | Thin Tanks | 190 | 2.6% | 5 |
| Jan 2026 | Rhino Water Tanks | 10 | 0.14% | 6 |
| Jan 2026 | Tankworks | 10 | 0.14% | 7 |
| Feb 2026 | Promax | 2.2K | 29.2% | 1 |
| Feb 2026 | Devon | 2K | 26.6% | 2 |
| Feb 2026 | Devan Tanks | 1.9K | 25.4% | 3 |
| Feb 2026 | Bailey | 1.1K | 15.4% | 4 |
| Feb 2026 | Thin Tanks | 230 | 3.1% | 5 |
| Feb 2026 | Rhino Water Tanks | 10 | 0.13% | 6 |
| Feb 2026 | Tankworks | 10 | 0.13% | 7 |
| Mar 2026 | Devon | 2.6K | 28.5% | 1 |
| Mar 2026 | Promax | 2.5K | 27.4% | 2 |
| Mar 2026 | Devan Tanks | 2.4K | 26.4% | 3 |
| Mar 2026 | Bailey | 1.3K | 14.7% | 4 |
| Mar 2026 | Thin Tanks | 260 | 2.9% | 5 |
| Mar 2026 | Tankworks | 10 | 0.11% | 6 |
| Mar 2026 | Rhino Water Tanks | 0 | 0% | 7 |
| Apr 2026 | Promax | 2.3K | 30% | 1 |
| Apr 2026 | Devon | 2K | 26.7% | 2 |
| Apr 2026 | Devan Tanks | 1.9K | 24.8% | 3 |
| Apr 2026 | Bailey | 1.1K | 15% | 4 |
| Apr 2026 | Thin Tanks | 260 | 3.4% | 5 |
| Apr 2026 | Tankworks | 10 | 0.13% | 6 |
| Apr 2026 | Rhino Water Tanks | 0 | 0% | 7 |
| May 2026 | Promax | 2.1K | 29.3% | 1 |
| May 2026 | Devon | 2.1K | 28.5% | 2 |
| May 2026 | Devan Tanks | 1.9K | 26% | 3 |
| May 2026 | Bailey | 940 | 12.9% | 4 |
| May 2026 | Thin Tanks | 240 | 3.3% | 5 |
| May 2026 | Tankworks | 10 | 0.14% | 6 |
| May 2026 | Rhino Water Tanks | 0 | 0% | 7 |
| Jun 2026 | Devon | 2.6K | 29.2% | 1 |
| Jun 2026 | Promax | 2.5K | 28.7% | 2 |
| Jun 2026 | Devan Tanks | 2.4K | 27.1% | 3 |
| Jun 2026 | Bailey | 1.1K | 12.6% | 4 |
| Jun 2026 | Thin Tanks | 200 | 2.3% | 5 |
| Jun 2026 | Tankworks | 10 | 0.11% | 6 |
| Jun 2026 | Rhino Water Tanks | 0 | 0% | 7 |
| Jul 2026 | Promax | 2.4K | 31.9% | 1 |
| Jul 2026 | Devon | 2K | 27.2% | 2 |
| Jul 2026 | Devan Tanks | 1.9K | 25.6% | 3 |
| Jul 2026 | Bailey | 940 | 12.7% | 4 |
| Jul 2026 | Thin Tanks | 190 | 2.6% | 5 |
| Jul 2026 | Rhino Water Tanks | 10 | 0.13% | 6 |
| Jul 2026 | Tankworks | 0 | 0% | 7 |
| Aug 2026 | Promax | 2.9K | 31% | 1 |
| Aug 2026 | Devon | 2.5K | 26.9% | 2 |
| Aug 2026 | Devan Tanks | 2.4K | 25.7% | 3 |
| Aug 2026 | Bailey | 1.2K | 13.1% | 4 |
| Aug 2026 | Thin Tanks | 290 | 3.1% | 5 |
| Aug 2026 | Rhino Water Tanks | 10 | 0.11% | 6 |
| Aug 2026 | Tankworks | 10 | 0.11% | 7 |
| Sep 2026 | Promax | 3.2K | 33% | 1 |
| Sep 2026 | Devon | 2.5K | 25.6% | 2 |
| Sep 2026 | Devan Tanks | 2.4K | 24.7% | 3 |
| Sep 2026 | Bailey | 1.4K | 14% | 4 |
| Sep 2026 | Thin Tanks | 250 | 2.6% | 5 |
| Sep 2026 | Rhino Water Tanks | 10 | 0.1% | 6 |
| Sep 2026 | Tankworks | 0 | 0% | 7 |
| Oct 2026 | Promax | 2.9K | 30.7% | 1 |
| Oct 2026 | Devon | 2.6K | 27.1% | 2 |
| Oct 2026 | Devan Tanks | 2.4K | 25.3% | 3 |
| Oct 2026 | Bailey | 1.4K | 14.3% | 4 |
| Oct 2026 | Thin Tanks | 230 | 2.4% | 5 |
| Oct 2026 | Tankworks | 10 | 0.11% | 6 |
| Oct 2026 | Rhino Water Tanks | 0 | 0% | 7 |

## How are branded searches counted for water tank brands?

- **Bailey**: Measured on the search terms “bailey tanks”, “bailey tanks limited” and “bailey water tanks”, summed into one figure.
- **Devan Tanks**: Measured on the search term “devan tanks”.
- **Devon**: Measured on the search terms “devon tank”, “devon tanks” and “devon water tank”, summed into one figure.
- **Promax**: Measured on the search terms “promax”, “promax diesel tanks”, “promax septic tanks”, “promax slimline tanks”, “promax tanks”, “promax underground tank” and “promax water tanks”, summed into one figure.
- **Rhino Water Tanks**: Measured on the search term “rhino water tanks”.
- **Tankworks**: Measured on the search term “tankworks”.
- **Thin Tanks**: Measured on the search terms “slim thin tanks”, “thin tanks”, “thin tanks installation”, “thin water tanks” and “thintanks”, summed into one figure.

- [Bailey](/demand/nz/brands/bailey)
- [Devan Tanks](/demand/nz/brands/devan-tanks)
- [Devon](/demand/nz/brands/devon)
- [Promax](/demand/nz/brands/promax)
- [Rhino Water Tanks](/demand/nz/brands/rhino)
- [Tankworks](/demand/nz/brands/tankworks)
- [Thin Tanks](/demand/nz/brands/thin-tanks)

## Methodology

- [How is the Brand Demand Index measured?](/demand/methodology): Where the figures come from, what they compare, and how they may be reused.

## Frequently asked questions

### Which brand is most popular in search among water tank brands in New Zealand?

In October 2026, Promax was the most searched among water tank brands in New Zealand, with an estimated 2.9K branded searches, 30.7% of all searches for the seven tracked by the Brandwave Brand Demand Index.

## Cite this page

Brandwave. "Water tank brands in New Zealand: Which are most popular?". https://gobrandwave.com/demand/nz/categories/nz-water-tank-brands

This page is also available as HTML at https://gobrandwave.com/demand/nz/categories/nz-water-tank-brands. Brandwave publishes an index of its Markdown pages at https://gobrandwave.com/llms.txt.