The Norwesco 25 Gallon Black Vertical Storage Tank is a compact upright polyethylene tank that holds 25 gallons in an 18 by 18 inch footprint and stands 29 inches tall, which makes it a practical fit for tight equipment bays, truck beds, utility rooms, and small-scale water storage where floor space is scarce. Molded from black polyethylene, this vertical storage tank carries a 1.5 specific gravity rating, meaning its walls are rated for liquids up to one and a half times the weight of water at this size.
Will it work for your application?
Filled with water, this 25 gallon tank weighs about 208 pounds, and it is rated to carry contents up to 313 pounds. That gives you roughly 105 pounds of weight headroom above full water, which is what the 1.5 specific gravity rating buys you: if you are storing a denser liquid, you can confirm your fluid stays under the 313-pound contents ceiling instead of guessing. The 18 by 18 inch footprint and 29-inch height let you slot it into spaces a wider tank would never reach. Fitting and lid configuration is not specified for this size, so call 866-418-1777 to confirm inlet, outlet, and lid before you order rather than assuming pre-installed ports. If you are still deciding on size, our Tank Sizing Calculator and Tank Sizing Guide walk you through matching capacity to your draw and refill cycle.
Siting and support
An upright 18 by 18 inch tank carrying up to 313 pounds needs a flat, fully supported base so the load sits evenly across the bottom. For above-ground placement on a pad, our guide on concrete pad sizing for above-ground polyethylene tanks covers the framework for getting the base right.
How it ships
This vertical storage tank ships LTL freight, quoted live to your ZIP code. Norwesco molds from plants across the country, so your order leaves from whichever location sits nearest to you: Fairfield, TX; Griffin, GA; Hanford, CA; Owego, NY; Shawnee, OK; Sheldon, IA; St. Bonifacius, MN; Tooele, UT; Washington Court House, OH; or Washougal, WA. Shipping from the closest plant keeps mileage and transit time down. Run your address through our Freight Cost Estimator for a live freight number before you order.
The mistake to avoid
The most common error with a small vertical tank like this is treating the 1.5 specific gravity rating as a green light for any liquid. It is not a chemical-compatibility statement; the rating governs the weight the walls can carry, not whether your fluid is safe against black polyethylene over time. The weight math is unforgiving: a fluid at the full 1.5 specific gravity hits the 313-pound contents ceiling right at 25 gallons, so anything denser forces you to fill below the full 25 gallons. If you are storing anything beyond water, verify chemical compatibility against the manufacturer's resistance chart for your exact concentration and temperature, and keep total contents weight under the 313-pound ceiling. For straightforward water storage at this size, that ceiling and the footprint are usually all you need to plan around.
Ready to move forward? Run your ZIP through the Freight Cost Estimator for a live LTL quote, or call our team at 866-418-1777 to confirm fitment, sizing, and the nearest shipping plant for this 25 gallon vertical storage tank. We are happy to walk through your storage setup before you buy.
