The Norwesco 20000 Gallon Vertical Fertilizer Storage Tank in yellow is a high-volume polyethylene vertical tank built for bulk liquid fertilizer and water storage. It holds 20,000 gallons in a single upright tank standing 242 inches tall on a 165 x 165 inch footprint. The yellow polyethylene shell carries a 1.5 specific gravity rating, which is what makes it suited to heavier-than-water liquids like liquid fertilizer rather than water alone. The yellow color is more than cosmetic: it reduces light transmission through the shell, which helps control algae and biological growth in stored water and fertilizer.
Will this Norwesco vertical storage tank work for my application
This is one of the largest poly tanks in the Norwesco vertical lineup, so the first thing to confirm is what you intend to store and how heavy it is. Filled with water, the contents weigh 166,800 lb; at the tank's full 1.5 specific gravity rating, the maximum rated contents weight is 250,200 lb. That spread is the reason the 1.5 SG rating matters here: it is the design ceiling for fluid density. A liquid fertilizer with a specific gravity at or below 1.5 stays within the tank's rating; a denser product does not, and putting one in is the most common and most expensive mistake on a tank this size. Verify the specific gravity of your exact fertilizer blend against the 1.5 rating before you fill. If your blend exceeds 1.5 SG, call 866-418-1777 before ordering so we can match you to a higher-rated tank rather than overloading this one. The 165 x 165 inch footprint and 242 inch height also need a level, engineered pad sized for the loaded weight, so plan the foundation alongside the tank itself. Our Tank Sizing Calculator and Tank Sizing Guide help you confirm capacity and dimensions for the space you have.
Fittings and foundation
Fitting layout matters on a tank this size. Because outlet size, bulkhead fittings, and gasket configuration vary by order, those details are confirmed at quote rather than assumed from the listing; call 866-418-1777 to lock in the fill, outlet, and vent arrangement your install needs. On the foundation side, 250,200 lb fully loaded at rated density places a serious point load on whatever the tank sits on, so a correctly sized concrete pad is not optional at this scale. Our guide on concrete pad sizing for above-ground polyethylene tanks walks through the ACI 360R-10 framework and where the ACI 318 boundary falls, so the pad is engineered for the actual loaded weight rather than guessed. For operations consolidating water across sources, our industrial water reuse tank topology guide covers how a vertical storage tank of this size fits into a banded storage train.
How it ships
A 20,000-gallon vertical tank ships LTL freight, quoted live to your ZIP. Norwesco builds at multiple plants; this tank can originate from Albertville, AL, St. Bonifacius, MN, or Washington Court House, OH, and freight is quoted from the stocking plant serving your delivery point. At roughly 13.75 ft across and 20.2 ft tall, this is an oversized vertical that requires crane or equipment-assisted offload at delivery; it will not come off a liftgate. Confirm site access and offloading equipment before the truck arrives to avoid a redelivery.
Get a live LTL freight quote to your ZIP with our Freight Cost Estimator, or call 866-418-1777 to confirm fitting layout, current plant origin, and the right vertical storage tank for your fertilizer or water program. Use the Tank Sizing Calculator first if you are still narrowing capacity.
