The Enduraplas 1320 Gallon Vertical Water Storage Tank (SKU 45660) is a polyethylene bulk-water tank molded in Forest Green and built for above-ground water storage on farms, rural fire-reserve sites, irrigation setups, and industrial water-reuse trains. It stands 74" tall on an 82" x 82" round footprint, giving you a stable, wide-based vessel that holds 1,320 gallons without the tall, tippy profile of a narrow tank. If you are deciding between this and a slimmer or taller unit, the Tank Sizing Calculator and Tank Sizing Guide will help you match capacity to your pad and draw rate.
Specs at a glance
- Capacity: 1,320 gallons
- Height: 74"
- Footprint: 82" x 82" (round base)
- Full water weight: ~11,009 lb
- Manway: 16" threaded vented cover
- Outlet: 2" bulkhead fitting
- Color: Forest Green
Will it work for your site?
Filled to capacity, this tank carries roughly 11,009 lbs of water, so the pad underneath it has to be engineered for that load, not just leveled dirt. A full 1,320 gallons concentrated on an 82-inch circle puts real bearing pressure on the ground, and settling or a soft spot is the most common cause of premature fitting stress. Our guide on concrete pad sizing for above-ground polyethylene tanks walks through the ACI framework for getting the base right. The factory fittings shown on the drawing are a vented manway cover with a 16" threaded manway and one 2" bulkhead for your fill-and-draw line — see the technical drawing on this page for the exact layout before you plumb it, and treat any additional outlets as a custom add.
Getting the plumbing and install right
The vented manway matters: a sealed lid on a tank this size can pull a vacuum as you draw water down and collapse the shell, so keep the vent clear. For the 2" bulkhead, use a matching 2" bulkhead gasket rated for water service and don't over-torque it — poly walls flex, and a crushed gasket leaks. If this is a new install, run a proper fill-and-hold before you trust it in service; the method in our hydrostatic test methodology covers pad settlement monitoring and fitting leak detection. For rural fire-water reserve duty, the NFPA 22 sizing discipline guide covers reservoir design and cold-climate freeze protection, and reuse-train operators should see the industrial water reuse tank topology guide.
This 1,320-gallon vertical water tank ships LTL freight, quoted live to your ZIP — get a freight number from the Freight Cost Estimator or call 866-418-1777 to lock in delivery. Line up equipment or extra hands to offload an empty poly tank of this size on arrival.
