The Chem-Tainer 550 Gallon Vertical Storage Tank (SKU TC4594IC-NAT) is a single-wall polyethylene vertical tank built for bulk water and liquid storage where you need real headroom in a compact footprint. It stands 94 inches tall on a 45 x 45 inch base, holding 550 gallons in a Natural White shell. This is the size that fits the gap between a yard-corner utility tank and a full bulk reservoir, and it covers what buyers search when they size a real install: a vertical storage tank, a vertical tank, or a 550 gallon vertical from Chem-Tainer.
Will it work for your job?
Filled with water, this tank carries about 4,587 pounds of contents, so the pad and anything underneath it has to be rated for that load before you fill. The 45 x 45 inch footprint concentrates that weight, which is why a properly sized, level pad matters more here than on a squat tank. If you are pouring or evaluating a slab, walk through the concrete pad sizing framework for above-ground polyethylene tanks first. Use the Tank Sizing Calculator and the Tank Sizing Guide to confirm 550 gallons matches your draw-down and refill cycle before you commit.
Why the 1.5 SG rating matters
The number that trips people up on this tank is the specific gravity rating, not the gallons. The 1.5 SG figure describes how dense a liquid the wall can safely hold, and a tank sized only by gallons can be undersized by weight if the liquid is heavier than water. Unlike standard 1.0 to 1.35 SG water tanks, this shell is rated to 1.5 specific gravity and a maximum rated contents weight of 6,880 pounds, so it handles brine, some fertilizers, and other heavier liquids that water-only tanks cannot. For plain water you have generous margin; the 1.5 rating is your ceiling, not a target. Whatever you store, verify your actual liquid density against the 1.5 rating before ordering.
The mistake to avoid
Do not assume a standard outlet location. Bulkhead fittings, gaskets, and outlet placement are configured to your application, so confirm fitting size, type, and chemical-compatible gasket material with us before the order ships. For rural fire-reserve planning where this footprint and capacity are common, the fire-water reservoir design guide covers NFPA 22 sizing and freeze protection, and if you are aggregating grey water, rainwater, or condensate, the industrial water reuse topology guide shows where a tank this size fits the train.
How it ships
This tank moves by LTL freight, quoted live to your ZIP, and ships from a Chem-Tainer plant: Hanford, CA or Marked Tree, AR. If you are shipping east, ask us whether Marked Tree, AR can fulfill your order, as it can cut LTL distance and cost. Get a number for your delivery address with the Freight Cost Estimator, or call 866-418-1777 and we will quote it and confirm fitting and accessory details with you before the order goes out.
