--- title: "Devan Tanks vs Promax: Which is more popular in New Zealand?" description: "Is Devan Tanks or Promax more popular in search? Compare estimated monthly branded-search demand and Share of Search inside the Water tank brands set in New Zealand. 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/compare/devan-tanks-vs-promax" publisher: "Brandwave" --- # Devan Tanks vs Promax: Which is more popular in New Zealand? Is Devan Tanks or Promax more popular in search? Compare estimated monthly branded-search demand and Share of Search inside the Water tank brands set in New Zealand. 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 - **Compared**: Devan Tanks and Promax - **Competitive set**: Water tank brands - **Market**: New Zealand - **Month measured**: Oct 2026 - **Devan Tanks Share of Search**: 25.3% - **Promax Share of Search**: 30.7% ## Is Devan Tanks or Promax more popular in search? - In October 2026, Promax had more branded searches than Devan Tanks among water tank brands in New Zealand. Promax had about 2,910 branded searches, while Devan Tanks had 2,400. Promax made up 30.7% of all water tank brand searches we track, and Devan Tanks accounted for 25.3%. - The lead changed hands once in the 12 months ending October 2026: Promax took it in December 2025. - Across the 12 months ending October 2026, Devan Tanks’ share of searches among water tank brands in New Zealand moved from 27.7% to 25.3%, and its estimated monthly branded searches held steady at 2.4K. - Across the 12 months ending October 2026, Promax’s share of searches among water tank brands in New Zealand moved from 27.3% to 30.7%, and its estimated monthly branded searches moved from 2.4K to 2.9K. ## Top water tank brands in ChatGPT and Google AI Overviews In three ChatGPT questions and two Google AI Overviews, Promax appeared in all five answers. Devan Tanks was mentioned in three out of five: in all three ChatGPT answers, but not in either of the two Google AI Overviews. Devan Tanks and Promax were each listed first in two of the four answers. 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. ## How did search popularity change for New Zealand water tank brands in October 2026? - 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%. ## How has branded search for Devan Tanks and Promax changed in New Zealand over the last 12 months? | Month | Devan Tanks estimated searches | Devan Tanks Share of Search | Devan Tanks rank | Promax estimated searches | Promax Share of Search | Promax rank | | --- | --- | --- | --- | --- | --- | --- | | Nov 2025 | 2.4K | 27.7% | 2 | 2.4K | 27.3% | 3 | | Dec 2025 | 1.6K | 26.4% | 3 | 1.7K | 27.6% | 2 | | Jan 2026 | 1.9K | 25.9% | 3 | 2.1K | 28.1% | 1 | | Feb 2026 | 1.9K | 25.4% | 3 | 2.2K | 29.2% | 1 | | Mar 2026 | 2.4K | 26.4% | 3 | 2.5K | 27.4% | 2 | | Apr 2026 | 1.9K | 24.8% | 3 | 2.3K | 30% | 1 | | May 2026 | 1.9K | 26% | 3 | 2.1K | 29.3% | 1 | | Jun 2026 | 2.4K | 27.1% | 3 | 2.5K | 28.7% | 2 | | Jul 2026 | 1.9K | 25.6% | 3 | 2.4K | 31.9% | 1 | | Aug 2026 | 2.4K | 25.7% | 3 | 2.9K | 31% | 1 | | Sep 2026 | 2.4K | 24.7% | 3 | 3.2K | 33% | 1 | | Oct 2026 | 2.4K | 25.3% | 3 | 2.9K | 30.7% | 1 | ## How are Devan Tanks’ and Promax’s branded searches counted? Brandwave collects information about searches that people make online using Devan Tanks’ and Promax’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. - **Devan Tanks**: Measured on the search term “devan tanks”. - **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. - [Devan Tanks profile](/demand/nz/brands/devan-tanks) - [Promax profile](/demand/nz/brands/promax) - [All water tank brands in New Zealand](/demand/nz/categories/nz-water-tank-brands): The set both shares are measured inside, 7 brands. ## 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 ### Is Devan Tanks or Promax more popular in search? In October 2026, Promax had more branded searches than Devan Tanks among water tank brands in New Zealand. Promax had about 2,910 branded searches, while Devan Tanks had 2,400. Promax made up 30.7% of all water tank brand searches we track, and Devan Tanks accounted for 25.3%. ## Cite this page Brandwave. "Devan Tanks vs Promax: Which is more popular in New Zealand?". https://gobrandwave.com/demand/nz/compare/devan-tanks-vs-promax This page is also available as HTML at https://gobrandwave.com/demand/nz/compare/devan-tanks-vs-promax. Brandwave publishes an index of its Markdown pages at https://gobrandwave.com/llms.txt.