The Norwesco 4200 Gallon HDPE Hauling Flat Bottom Utility Tank in Blue is a polyethylene hauling tank built to move and stage large volumes of water and general utility liquids on a transportable flat-bottom footprint. It carries a 4,200-gallon working capacity, a 1.9 specific gravity rating, and a flat base measuring 96 inches by 182 inches at 85 inches tall. That high SG rating is the headline durability spec here: the wall is engineered to handle liquids up to 1.9 times the weight of water, which gives this Norwesco utility tank real headroom over a standard water-only design.
Will it work for your haul?
Start with the weights, because they drive every decision downstream. Filled with plain water, the contents alone weigh about 35,028 pounds; at the full 1.9 specific gravity rating, the contents can reach roughly 66,553 pounds. That loaded figure, not the empty shell, is what your trailer, frame, tie-downs, and deck have to carry. As a hauling tank, this is meant to ride in a cradle or on a deck that supports the entire 96 x 182 inch floor, never on point loads or partial support, so build your transport platform around the 66,553 lb maximum. To match capacity to your actual draw and refill cycle, run the numbers through our Tank Sizing Calculator and review the Tank Sizing Guide before you commit. Outlet, fill-opening, and fitting locations are shown on the technical drawing on this page rather than confirmed here in spec form, so verify outlet size and placement against your transfer pump and plumbing there, or by phone, before purchase.
The mistake to avoid on this tank
The specific gravity rating is the spec people skip, and on a hauling tank it is the one that matters most. The 1.9 rating sets a weight ceiling, and you can check any liquid against it yourself: contents weight equals gallons times 8.34 times the liquid's specific gravity. Run your liquid through that formula and confirm a full load stays at or under the 66,553 lb maximum. Keep in mind this is a water and general utility tank, not an automatic chemical tank; the SG rating is a weight allowance, not a chemical-service approval, and any gasket or fitting hardware must be confirmed on the drawing or by phone rather than assumed. If your liquid sits near the top of that range, the loaded weight climbs fast and your DOT and transport considerations change with it. For portable agricultural fleet use and the road-classification questions that come with hauling, our guide on the 49 CFR 173.5 agricultural exemption and DOT classification for farm fleet use is worth reading before your first load.
Placement between hauls
When this tank sits stationary between loads, the surface under it has to carry the loaded weight without flexing or settling. A flat, fully supporting pad keeps the floor evenly loaded and protects the polyethylene from stress cracking over time. For above-ground stationary use, our breakdown of concrete pad sizing for above-ground polyethylene tanks walks through the ACI 360R-10 framework so your base is sized to the load, not guessed at. If you are aggregating water across multiple sources, the industrial water reuse tank topology guide covers how large HDPE storage fits into a banded storage train.
This Norwesco hauling tank ships LTL freight from a single plant in St. Bonifacius, MN, quoted live to your ZIP code. Because it ships from one Midwest origin, West and South buyers should expect long-haul distance to drive the quote, so price it against a real ZIP rather than guessing. Get your exact landed freight number through the Freight Cost Estimator, or call 866-418-1777 and we will quote it for you and confirm fit for your transport setup.
