The Norwesco 300 Gallon Plastic Portable Utility Tank in Black is a low-profile polyethylene tank built to haul and dispense water and utility liquids across a farm, fleet, or jobsite. It holds 300 gallons in a single-color black shell molded from polyethylene, and because it carries a 1.5 specific gravity rating, it is not a water-only tank: it is rated to hold contents up to roughly 3,753 lb at full volume, which gives you headroom for denser utility liquids, not just the 2,502 lb a full water load weighs. It sits on a 42" x 63" footprint just 30" tall, so it loads onto a flatbed, skid, or pickup without towering over the rails. If you have been searching for a Norwesco utility tank or 300 gallon black tank for portable service, this is the size that balances real capacity against a haulable height.
Will it work for your job?
The tank measures 63" long by 42" wide by 30" high, so confirm those numbers against your trailer deck or truck bed before you order. Filled with water it carries about 2,502 lb of contents, and the 1.5 specific gravity rating lets you run liquids up to roughly 3,753 lb of contents weight at full volume. Use those weights to size your support deck and tie-downs, and lean on the Tank Sizing Calculator and Tank Sizing Guide if you are matching this tank to a specific transport or stationary setup. Fitting and outlet sizes are not listed in our spec data for this tank, so check the technical drawing on this page for the fill-opening and outlet layout, or call 866-418-1777 and we will confirm the connection sizes before you order so your pump, hose, and valve fittings line up.
Mounting and transport
The 30" tall, low-profile portable utility geometry rides low and wide, so the contents shift as you drive and the load needs full-length support and proper restraint, not point straps over an unsupported span. For agricultural fleet use, the guide to Norwesco loaf-style portable utility tanks and the 49 CFR 1735 agricultural exemption covers DOT classification and how the farm-use exemption applies to portable Norwesco tanks like this one. If this 300 gallon tank will live on a pad rather than a trailer, the concrete pad sizing framework for above-ground polyethylene tanks walks through the ACI 360R-10 approach for the loaded weights above.
The mistake to avoid
The most common error on a portable tank this size is under-supporting it. At 30" tall and 63" long, the 2,502 lb water load (more if you are running a denser liquid up toward the 1.5 SG rating) wants a continuous, flat-bottom cradle that matches the full 42" x 63" footprint. A couple of cross members under an otherwise unsupported belly will flex and crack the polyethylene over time. Match the support to the full footprint, restrain it for the road, and the tank earns its keep. For broader reservoir and reuse planning, see the fire-water reservoir design guide and the industrial water reuse tank topology guide.
This Norwesco 300 gallon tank ships LTL on a freight carrier from whichever of Norwesco's plants is nearest your ZIP: Albertville, AL; Hanford, CA; Sheldon, IA; or Washington Court House, OH. The listed price is the tank only; LTL freight is quoted separately to your delivery ZIP. Get a freight quote up front with our Freight Cost Estimator, which pulls from the closest plant, or call 866-418-1777 and we will quote it for you.
