The Norwesco 500 Gallon Black Heavy Duty Vertical Storage Tank holds 500 gallons in a vertical footprint of 48 by 48 inches and stands 73 inches tall. The black polyethylene wall blocks light to slow algae growth, which makes this a practical choice for bulk water storage, fire-water reservoir reserve, rainwater collection, and general above-ground liquid storage. It carries a 1.9 specific gravity rating, so the wall is built for liquids heavier than water - not just plain water service.
Will it work for your site?
Full of water, this 500 gallon vertical tank weighs about 4,170 pounds, and its maximum rated contents weight is 7,923 pounds. The gap between those two numbers is the headroom the 1.9 specific gravity rating buys you: rated to roughly 1.9 times the density of water, the tank is specced to carry heavier-than-water fluids up to 7,923 pounds of contents, versus 4,170 pounds when it is full of plain water. If you are sizing this for a non-water fluid, that contents-weight ceiling - not the gallon count - is your real limit. Either way, the pad and the ground beneath it have to carry the full loaded weight, so plan the foundation around the loaded number, not the empty tank. At 73 inches tall on a 48 by 48 inch base, this is a tall vertical profile, so set the pad flush to the full 48 by 48 footprint and consider anchoring for exposed or high-wind sites. Our concrete pad sizing guide walks through the ACI framework for above-ground polyethylene tanks. If you are deciding between this 500 gallon size and another capacity, the Tank Sizing Calculator and Tank Sizing Guide help you match volume to your draw and refill needs.
Fittings and configuration
For exact fitting placement, sizes, the gasket spec, and the manhole and lid detail on this model, see the technical drawing on this page. Fittings and bulkheads are molded in and are not field-changeable, so confirm the inlet and outlet you need against the drawing - or call 866-418-1777 - before you order. That one check is what keeps a wrong-fitting mismatch from turning into a return on a 4,000-plus-pound freight item. If you are planning a fire-water reserve, our guide on fire-water reservoir tank design for rural and remote sites covers NFPA 22 sizing discipline and freeze protection for cold-climate service. For grey-water, rainwater, and condensate reuse setups, the industrial water reuse tank topology guide shows how to band quality and sequence treatment stages.
Freight
Because Norwesco molds this vertical storage tank at four plants - Fairfield, TX; Hanford, CA; Tooele, UT; and Washougal, WA - your freight is set by the nearest origin, so Western and South-Central buyers often see materially lower LTL than they would from a single-warehouse competitor. It ships LTL freight, quoted live to your ZIP. Run your delivery ZIP through the Freight Cost Estimator for a live LTL quote, or call us at 866-418-1777 and we will work out the nearest origin and your delivery timeline. The most common mistake on a tank this size is treating it like a parcel: it is a 4,000-plus-pound loaded vertical storage tank that needs a prepared, level pad in place before it arrives, so get the foundation ready first and confirm your fitting layout against the drawing before you buy.
