Shop Popular Categories
Browse Promax tank categories for residential, rural, commercial, and specialised applications.
Water Tanks
Durable above-ground water tanks for rural, residential, and commercial storage.
Underground Tanks
Underground water storage for sites where space, access, or visibility matters.
Slimline Tanks
Narrow-profile tanks designed for homes, boundaries, and other restricted spaces.
Industrial Tanks
Specialised tanks for demanding commercial, industrial, and process applications.
Water storage, rain harvesting, septic and wastewater solutions for homes and building projects across New Zealand.
Liquid transport, dust suppression and site water management solutions built for demanding site conditions.
Engineered liquid storage solutions for industrial sites, processing plants and specialised applications.
Water storage and liquid management solutions for farms, lifestyle blocks and rural properties.
Easy to specify
Whether you’re storing water, harvesting the rain or installing septic tanks, Promax has a liquid storage solution that will fit your construction site.
Easy to install
Whether you’re storing water, harvesting the rain or installing septic tanks, Promax has a liquid storage solution that will fit your construction site.
Built for purpose
Whether you’re storing water, harvesting the rain or installing septic tanks, Promax has a liquid storage solution that will fit your construction site.
Built on Experience
From rural properties to industrial sites, Promax delivers proven solutions backed by local expertise and nationwide reach.
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Need Help Choosing the Right Solution?
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Whether you need help choosing the right product, understanding your options, or finding the best solution for your project, we are here to help.
If you would like to speak with our team, call us on 0800 77 66 29.