The Enduraplas 550 Gallon Black Vertical Storage Tank is a 550-gallon polyethylene vertical tank built for above-ground bulk water storage where a compact footprint and a high safety margin both matter. It stands 52 inches tall on a 60 x 60 inch base, so it tucks under low overhead clearances while holding a full working volume of water. The black resin blocks light, which discourages algae growth in stored water, and the 1.9 specific-gravity rating gives this Enduraplas vertical tank substantial reserve wall strength for water service.
Will it work for your site?
Filled with water, this tank carries about 4,587 pounds of contents, and its 60.0 x 60.0 inch footprint distributes that load across a five-foot square pad. The tank arrives light as an empty poly shell and only reaches that ~4,587-pound load once filled, so plan your delivery and placement for the empty unit but size the pad and any anchoring for the filled weight. The wall is rated to a specific gravity of 1.9, meaning its structure is engineered to hold contents weighing up to roughly 8,715 pounds at full capacity. For plain water (specific gravity 1.0) you are operating well within that envelope, the comfortable long-service zone for a vertical storage tank. That 1.9 rating also makes this the heavier-duty choice if you may later store fluids denser than water, since the wall carries real headroom for heavier contents. If you are unsure whether 550 gallons matches your draw-down and refill cycle, run the numbers through our Tank Sizing Calculator or read the Tank Sizing Guide before you commit.
Reading the specs
The 52-inch overall height and 60 x 60 inch footprint determine your clearance, doorway, and pad layout, so check them against your site before ordering. Fitting locations and sizes vary by configuration, so verify outlet and inlet placement against your plumbing plan before you order. Because we cannot list a fixed fitting layout for every build, call 866-418-1777 to confirm the exact fitting configuration on this tank before you commit. This is a true vertical storage tank, not a cone-bottom or transport unit, so it is meant to sit upright on a flat, fully supported, level pad. Pouring or framing that pad correctly is the single most common thing buyers get wrong with a tank this heavy when full; our guide on concrete pad sizing for above-ground polyethylene tanks walks through the ACI framework for getting it right.
Common uses
A 550-gallon black vertical tank is a workhorse for rural and remote water reserves, rainwater and grey-water capture trains, and standby supply where freeze protection and reserve volume are the priority. If you are capturing rainwater, our guide on first-flush diverter sizing for rainwater harvesting covers how to keep that stored water clean from the first inch of runoff. For a private fire-water reserve, our guide on fire-water reservoir tank design for rural and remote sites covers NFPA 22 sizing discipline and cold-climate engineering, and our breakdown of industrial water reuse tank topology shows how a black vertical tank fits into grey-water, rainwater, and HVAC condensate storage trains.
Freight and ordering
This tank ships LTL freight, quoted live to your ZIP code from the nearer of two stocking plants in Converse, TX or Neche, ND. Shipping from whichever plant is closer can materially cut LTL cost whether your destination is in the south or the north, so get an exact number through our Freight Cost Estimator before you order, or call 866-418-1777 and we will work the route from the closest plant to you. Have your delivery ZIP and any site-access notes ready and we will line up the most efficient shipment.
