The Norwesco 50 Gallon Vertical Liquid Storage Tank (SKU N-41865) is a compact polyethylene vertical tank for tight footprints where you still need real liquid storage. It stands 53 inches tall on an 18-inch diameter base, so it fits corners, utility rooms, equipment skids, and narrow outdoor pads that wider tanks cannot reach. This 50 gallon vertical storage tank carries a 1.5 specific gravity rating, the spec that defines what it can safely hold.
Will it work for your application?
The single biggest planning point on a tank this size is point load. Because all of the loaded weight concentrates on a small 18-inch diameter footprint, the surface under it matters far more than the modest gallon count suggests. Filled with plain water, this tank carries roughly 417 pounds. At its maximum rated 1.5 specific gravity, contents can weigh up to about 626 pounds, and that 626 pounds bears down on an 18-inch circle. A level, continuously supported base is essential. Size your pad, stand, or platform for the heavier figure if you are storing anything denser than water. To convert your fluid's density into a required specific gravity, run the numbers through the Tank Sizing Calculator; if your liquid exceeds 1.5 specific gravity, call before you buy. The Tank Sizing Guide walks through the same logic if you are choosing between sizes.
Mounting and placement
For above-ground installs on concrete, our guide on concrete pad sizing for above-ground polyethylene tanks covers the ACI framework so the pad carries the full rated load. Cold-climate users storing water should plan for freeze protection; the fire-water reservoir design guide covers freeze engineering for remote sites that applies to general cold-weather storage too.
The mistake to avoid
The most common error with this tank is treating the 1.5 specific gravity rating as a guarantee that any liquid is fine. The rating governs weight and wall stress, not chemical resistance. Confirm your contents stay at or below 1.5 specific gravity, and if you are storing anything other than water, verify polyethylene chemical compatibility separately before filling. Just as important: fitting, bulkhead, and gasket configuration is not specified in the listed data for this tank. Because gasket material is what actually governs a seal's compatibility, not the polyethylene shell, confirm the fitting and gasket setup by phone before you order anything other than a plain water install. The second mistake is under-building the support, since 626 pounds on an 18-inch base will damage a weak or uneven surface.
This Norwesco tank ships LTL freight, quoted live to your ZIP from the nearest of 11 Norwesco plants nationwide. Get your live freight quote by ZIP with the Freight Cost Estimator, or call us at 866-418-1777 to confirm fittings, lock in freight, and verify fit for your application.
3 Year Warranty
