The Enduraplas 6,100 Gallon Open Top Tank (SKU 5220200N29) is a large square-footprint bulk storage vessel molded from cross-linked polyethylene (XLPE), built for high-volume batching, process water holding, and reservoir duty where an open top makes filling, mixing, and inspection straightforward. With a 6,100-gallon working capacity on a 120 x 120 inch base standing 126 inches tall, this is a serious piece of standing storage — plan the pad and the surrounding access before it arrives.
Will it work for your site?
The tank measures 120 in long by 120 in wide by 126 in tall, and those dimensions are verified against the launch spec. The rectangular open-top design gives you a square 120.0 x 120.0 inch footprint, which spreads the load and simplifies pad layout compared with a round tank of the same volume. Filled with water, this tank carries roughly 50,874 lb, so the supporting slab has to be engineered for that water-filled standing load. If you are sizing the pad, walk through our concrete pad sizing framework for above-ground polyethylene tanks before you pour. The Tank Sizing Calculator and Tank Sizing Guide help you confirm 6,100 gallons matches your draw-down and refill cycle.
Open-top service and the mistake to avoid
Per the model designation, this is an XLPE tank carrying a 1.35 specific-gravity figure in its name. Cross-linked polyethylene is a chemically tougher, more impact-resistant wall than standard linear poly, but the open-top configuration means it is built for atmospheric, vented storage — not a sealed pressure or closed-loop vessel. The most common mistake on a tank this size is treating the open top as a substitute for engineered overflow and access: specify your overflow, ladder, and cover arrangement for the 126-inch height, and account for the full 50,874 lb water-filled load when you plan anchoring and containment. For a denser fluid, verify your product density against the model's 1.35 SG designation before you fill. See the technical drawing on this page for the tank's dimensional layout.
Where it fits
A 6,100-gallon open-top poly reservoir earns its keep in rural and remote fire-water storage, industrial process water, and reuse and rainwater aggregation. If fire protection is the driver, our guide on fire-water reservoir tank design and NFPA 22 sizing covers the sizing discipline and cold-climate freeze protection. For grey-water, rainwater, and condensate programs, see our industrial water reuse tank topology and rainwater harvesting first-flush sizing write-ups.
This tank ships LTL freight as an oversized load — a 120-inch-square, 126-inch-tall vessel needs a flatbed and an unload plan, so line up equipment on your end before delivery. Freight is quoted live to your ZIP with our Freight Cost Estimator, or call 866-418-1777 and we will work out the delivery details with you.
