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

Name: Water tank brands in New Zealand: Which are searched most?
Creator: Brandwave
License: https://creativecommons.org/licenses/by/4.0/

In October 2026, Promax was the most searched water tank brand in New Zealand, accounting for 30.7% of all searches among the seven brands tracked by the Brandwave Brand Demand Index. When we checked with ChatGPT and Google AI Overviews, Promax and Bailey showed up in every answer. Promax was recommended most often, coming first in one out of four responses that gave a list.

Follow water tank brands 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

Track your brand in this set →

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.

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.

How many AI answers named each brand
Brand	ChatGPT	Google	Answers that named it
Promax	Named in 3 of 3 ChatGPT answers	Named in 2 of 2 Google AI Overviews	5 of 5
Bailey	Named in 3 of 3 ChatGPT answers	Named in 2 of 2 Google AI Overviews	5 of 5
Devan Tanks	Named in 3 of 3 ChatGPT answers	Named in 0 of 2 Google AI Overviews	3 of 5
Thin Tanks	Named in 0 of 3 ChatGPT answers	Named in 1 of 2 Google AI Overviews	1 of 5
Devon	Named in 0 of 3 ChatGPT answers	Named in 0 of 2 Google AI Overviews	0 of 5
Tankworks	Named in 0 of 3 ChatGPT answers	Named in 0 of 2 Google AI Overviews	0 of 5
Rhino Water Tanks	Named in 0 of 3 ChatGPT answers	Named in 0 of 2 Google AI Overviews	0 of 5

Promax5 of 5Named in 3 of 3 ChatGPT answersNamed in 2 of 2 Google answers
Bailey5 of 5Named in 3 of 3 ChatGPT answersNamed in 2 of 2 Google answers
Devan Tanks3 of 5Named in 3 of 3 ChatGPT answersNamed in 0 of 2 Google answers
Thin Tanks1 of 5Named in 0 of 3 ChatGPT answersNamed in 1 of 2 Google answers
Devon0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
Tankworks0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
Rhino Water Tanks0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers

See every answer about water tank brands

5 answers

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

Not named in any answer:

Brands are shown in the order each answer named them. The survey took place in New Zealand on October 21, 2026.

Which water tank brands do people search for most?

This chart shows how often people search Google for each water tank brand by name. Each line represents a brand's share of searches for all seven water tank brands we track, month by month, from searches in New Zealand.

Share of searches among water tank brands in New Zealand, by month

Month	Promax	Devon	Devan Tanks	Bailey	Thin Tanks	Tankworks	Rhino Water Tanks
Nov 2025	27.3%	28.8%	27.7%	13.6%	2.3%	0.12%	0.12%
Dec 2025	27.6%	27.6%	26.4%	14.9%	3.1%	0.17%	0.17%
Jan 2026	28.1%	27.4%	25.9%	15.7%	2.6%	0.14%	0.14%
Feb 2026	29.2%	26.6%	25.4%	15.4%	3.1%	0.13%	0.13%
Mar 2026	27.4%	28.5%	26.4%	14.7%	2.9%	0.11%	0%
Apr 2026	30%	26.7%	24.8%	15%	3.4%	0.13%	0%
May 2026	29.3%	28.5%	26%	12.9%	3.3%	0.14%	0%
Jun 2026	28.7%	29.2%	27.1%	12.6%	2.3%	0.11%	0%
Jul 2026	31.9%	27.2%	25.6%	12.7%	2.6%	0%	0.13%
Aug 2026	31%	26.9%	25.7%	13.1%	3.1%	0.11%	0.11%
Sep 2026	33%	25.6%	24.7%	14%	2.6%	0%	0.1%
Oct 2026	30.7%	27.1%	25.3%	14.3%	2.4%	0.11%	0%

Rank	Brand	Share of searches	Estimated monthly branded searches	vs prior month	Share change
1, held 1st	PromaxPromax Plastics	30.7%	2.9K	-9.3%	-2.3 points
2, held 2nd	DevonDevon Tanks	27.1%	2.6K	+3.2%	+1.5 points
3, held 3rd	Devan Tanks	25.3%	2.4K	0%	+0.7 points
4, held 4th	BaileyBailey Tanks	14.3%	1.4K	-0.74%	+0.3 points
5, held 5th	Thin Tanks	2.4%	230	-8%	-0.1 points
6, moved from 7th to 6th	Tankworks	0.11%	10	—	+0.1 pointsmoved from 7th to 6th
7, moved from 6th to 7th	Rhino Water Tanks	0%	0	-100%	-0.1 pointsmoved from 6th to 7th

1.Promax
30.7%
Held 1st. 2.9K estimated branded searches, -9.3% vs prior month. Share -2.3 points.
2.Devon
27.1%
Held 2nd. 2.6K estimated branded searches, +3.2% vs prior month. Share +1.5 points.
3.Devan Tanks
25.3%
Held 3rd. 2.4K estimated branded searches, 0% vs prior month. Share +0.7 points.
4.Bailey
14.3%
Held 4th. 1.4K estimated branded searches, -0.74% vs prior month. Share +0.3 points.
5.Thin Tanks
2.4%
Held 5th. 230 estimated branded searches, -8% vs prior month. Share -0.1 points.
6.Tankworks
0.11%
Moved from 7th to 6th. 10 estimated branded searches, — vs prior month. Share +0.1 points.
7.Rhino Water Tanks
0%
Moved from 6th to 7th. 0 estimated branded searches, -100% vs prior month. Share -0.1 points.

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

7 brands

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%.

New Zealand water tank brands, last 12 months ending October 2026
Brand	Share of searches	Peak	Low	Rank
Promax	27.3% → 30.7%	33%Sep 2026	27.3%Nov 2025	3rd → 1st
Devon	28.8% → 27.1%	29.2%Jun 2026	25.6%Sep 2026	1st → 2nd
Devan Tanks	27.7% → 25.3%	27.7%Nov 2025	24.7%Sep 2026	2nd → 3rd
Bailey	13.6% → 14.3%	15.7%Jan 2026	12.6%Jun 2026	4th
Thin Tanks	2.3% → 2.4%	3.4%Apr 2026	2.3%Jun 2026	5th
Tankworks	0.12% → 0.11%	0.17%Dec 2025	0%Jul 2026	7th → 6th
Rhino Water Tanks	0.12% → 0%	0.17%Dec 2025	0%Mar 2026	6th → 7th

Each finding as a sentence

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.

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

7 changes

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.

How are branded searches counted for water tank brands?

21 search terms

Each brand's share of searches among water tank brands comes from the terms listed under its name. When people mostly search for a brand because of something else it sells, only the searches that name this product count here.