Industrial Rectangular Tanks

Dura-Tech fiberglass industrial rectangular tanks are built for facilities that need durable storage, containment, or process tanks in a space-efficient shape. Rectangular tanks are a practical choice when your site layout, building footprint, equipment room, or process area does not allow for a circular or vertical tank.

All Dura-Tech fiberglass tanks are rust-proof, lightweight, and extremely durable. They are manufactured using premium resin with a combination of fiberglass chopped strand and woven glass products, giving them the strength and corrosion resistance needed for demanding industrial environments.

Industrial rectangular tanks can be used for process water, chemical handling, treatment systems, utility storage, containment, and custom production applications. Their shape makes them especially useful when tanks need to fit against walls, under equipment, within tight rooms, or as part of a larger process layout.

Dura-Tech offers a variety of standard rectangular tank sizes, with capacities ranging from small utility tanks to large custom storage tanks. Tanks can also be configured with open or closed tops, fittings, manways, insulation, heat trace, baffles, support structures, site gauges, and other accessories depending on your application.

These tanks are easy to transport, and Dura-Tech can also deliver and install them for you. Tanks can be tested before and after installation, helping your team confirm that the tank is ready for service.

Best for:

  • Industrial liquid storage
  • Process water storage
  • Water treatment systems
  • Utility and service tanks
  • Equipment rooms and tight spaces
  • Facilities requiring custom tank dimensions
  • Applications where circular tanks are not practical

Standard size options:

  • 3′ wide x 3′ long models
  • 3′ wide x 7′ long models
  • 4′ wide x 6′ long models
  • 4′ wide x 8′ long models
  • 5′ wide x 4′ long models
  • 7′ wide x 7′ long models
  • Large custom rectangular tanks available
  • Capacities from approximately 69 to 8,014 US gallons in listed standard models
  • Custom sizes available depending on project requirements

Why fiberglass rectangular tanks?

Fiberglass is a strong material choice for industrial rectangular tanks because it is rust-proof, corrosion-resistant, lightweight, and low maintenance. For facilities handling water, chemicals, moisture, or corrosive environments, fiberglass can provide long-term performance without the rust concerns associated with steel.

The rectangular shape also gives design flexibility. These tanks can be placed in areas where round tanks are inefficient, including narrow rooms, equipment bays, corners, or process lines. They can also be built to match available space, required volume, access needs, and plumbing layout.

For projects involving chemicals, temperature control, outdoor exposure, process water, or unusual site restrictions, Dura-Tech can work with your team to review resin selection, fittings, insulation, supports, and accessories so the tank is built around the application.


Get a Quote

Dura-Tech fiberglass transport tank with center drain and lifting hardware mounted on truck bed

Complete your fiberglass tank system

Dura-Tech offers accessories for both aquaculture and industrial fiberglass tanks, including covers, fittings, sumps, insulation, manways, vents, heating systems, ladders, platforms, gauges, and custom components.