(928) 713-0010 is the number to call for inquiries about agricultural tanks, including options for plastic fertilizer tanks and poly spray tanks.
(928) 713-0010 is the number to call for inquiries about agricultural tanks, including options for plastic fertilizer tanks and poly spray tanks.
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Our commercial fire protection tanks meet or exceed NFPA 22 standards for water storage, ensuring compliance for your needs. These tanks are equipped with a variety of firefighting adapters that are compatible nationwide. Additionally, our epoxy coated fire protection tanks can be installed and made operational in just a matter of days by our trained and authorized installers.

Fire Protection Storage Tanks meet the demands for increased water storage and conservation, particularly in the realm of commercial fire protection tanks. Stringent insurance regulations and the construction of new facilities around the globe provide us the opportunity to deliver the industry benchmark in NFPA compliant water storage, including our epoxy coated fire protection tanks.
SteelCore® Fire Tanks are designed one at a time for every unique project, making them ideal commercial fire protection tanks. We offer 17 standard tank diameters ranging from 6' to 74', with roof options of 10° and 30°. Choose between open top or Geodesic Dome Roof Designs for capacities up to 2.9 million gallons! Our heights are fully customizable, featuring partial rings to meet your specific usable capacity or height requirements. All tanks are NFPA compliant water storage solutions, adhering to NFPA 22 standards. Additional features include side wall access panels or side shell manways, dual roof access manways, an exterior caged ladder with anti-climb features, partial or full guardrails, a liquid level gauge, and anti-vortex suction nozzles, ensuring your epoxy coated fire protection tanks are both functional and safe.

Commercial fire protection tanks are available in 9 standard sizes ranging from 4,990 to 97,000 gallons. From these standard sizes, additional water capacity can be achieved by adding rings, offering a wide variety of water storage options with gross capacities that can reach up to 700,000 gallons.
Constructed from Zincalume® steel, these epoxy coated fire protection tanks have been proven to withstand fire immersion and resist corrosion, ensuring the safety of your water supply even in the most severe emergencies.
The exclusive five-layer Aqualiner® is approved to NSF 61 standards for potable water, making it a reliable choice for compliant water storage.
Pioneer tanks can be configured for high-wind locales, seismic conditions, and heavy industrial zones with additional accessories that meet various compliance needs, including NFPA compliant water storage.


Dual service water storage tanks, including epoxy coated fire protection tanks, serve multiple purposes such as fire protection, irrigation, and providing a potable drinking water source. To ensure a reliable water supply during emergencies, especially for commercial fire protection tanks, it’s essential to have the appropriate fire connections that comply with NFPA standards for both residential and commercial needs.
Southwest Water Tanks
588 South Cold Water Lane, Dewey, Arizona 86327, United States