Norwesco 140 Gallon HD Vertical Storage Tank

The Norwesco 140 Gallon HD Vertical Storage Tank (SKU 45870) is a 73-inch-tall polyethylene tank built for above-ground water storage on a compact 25 x 25-inch footprint.Molded in natural white polyethylene, this is a Norwesco vertical tank rated to a 1.5 specific gravity, which gives you real structural headroom for water storage.If you have been searching for a vertical storage tank that fits a tight pad without sacrificing height-driven capacity, this is the size that does it.

Will this tank work for your application?

The numbers tell the story.Full of water, the 140 gallons inside weighs about 1,168 pounds, and the tank carries a maximum rated contents weight of 2,218 pounds at its 1.5 specific gravity rating.That is roughly 1,050 pounds of weight headroom over plain water - the math the HD ("heavy-duty") designation is built on.The wall is engineered to carry contents heavier than water, so you are not running the tank at the edge of its limit when storing plain water.At 73 inches tall on a 25 x 25-inch footprint, the profile is tall and narrow - close to a 2.9-to-1 height-to-width ratio - which is useful where floor space is the constraint and vertical clearance is not.To confirm the size matches your draw-down and refill cycle, run the numbers through our Tank Sizing Calculator or read the Tank Sizing Guide before you order.

Mounting, fittings, and the drawing

That tall-narrow shape raises the center of gravity, so a fully supporting pad and proper anchoring matter more here than on a squat tank - especially with over a ton of rated load concentrated on a 25 x 25-inch base.Place this tank on a smooth, level surface that carries the entire footprint.For above-ground installs, size the pad correctly; our guide on concrete pad sizing for above-ground polyethylene tanks walks through the ACI framework so the base does not crack or settle unevenly under the rated load.On fittings: outlet size, fitting location, and gasket configuration are not part of our catalog data for this SKU, so the technical drawing on this page is the authority - check it before ordering bulkhead fittings or gaskets rather than assuming a default outlet.

Common applications and a mistake to avoid

This size suits non-potable water storage, rainwater capture, fire-water reserve, and process or reuse water trains.If you are building rural fire protection, our write-up on fire-water reservoir tank design covers NFPA 22 sizing discipline and cold-climate freeze protection.For grey-water, rainwater, and condensate reuse, see our industrial water reuse tank topology guide.The mistake to avoid: the 1.9 specific gravity rating is a structural ceiling, not a green light to store a heavier-than-water liquid of any kind.It tells you the wall can carry the weight of a denser fluid - it says nothing about chemical resistance.Before putting anything other than water in this tank, confirm chemical compatibility for the resin, gaskets, and fittings.

This tank ships LTL freight from the Norwesco plant in Lancaster, OH - Eastern and Midwest ZIPs generally quote lower LTL, and palletized freight is always quoted live to your exact ZIP code.Get your number instantly with our Freight Cost Estimator or call 866-418-1777 to talk through delivery and accessory options.One Source Plastics will help you confirm the right tank and the right freight before you commit.