The Enduraplas 1350 Gallon Plastic Vertical Liquid Storage Tank in Black is a polyethylene vertical storage tank built for bulk liquid on a compact pad. It holds 1,350 gallons, stands 71 inches tall, and sits on an 85 x 85 inch footprint, so this unit is actually wider than it is tall, which matters when you lay out the slab and the surrounding work envelope. The black resin blocks light to discourage algae growth in stored water, which makes this a practical choice for outdoor irrigation supply, fire-water reserve, and rainwater or reuse storage. A 1,350-gallon tank is a real pad-and-freight commitment, so before you pour anything, confirm you actually need this volume against a smaller unit by running your numbers through the Tank Sizing Calculator or reading the Tank Sizing Guide.
Will it work for your install?
This vertical tank is rated to a 1.9 specific gravity, which is the standout spec here: a 1.9 rating covers most concentrated agricultural and industrial chemistries up to roughly 15.8 pounds per gallon, so if you are cross-shopping for a denser liquid, this tank already qualifies where a standard 1.0 to 1.5 SG shell would not. Plan your foundation around the loaded weight, not the empty shell. Full of water this tank carries roughly 11,259 pounds, and at its maximum rated 1.9 SG contents it reaches about 21,392 pounds. That load has to land on a flat, fully supporting base. Before you size the pad, review concrete pad sizing for above-ground polyethylene tanks so the slab matches the footprint and the loaded weight. For rural fire-protection duty, the fire-water reservoir design guide walks through NFPA 22 sizing and cold-climate freeze protection.
What to watch on this tank
The most common mistake at this size is treating the empty weight as the design load. It is the loaded weight that governs the foundation, so build the pad to carry the full figures above with margin. The second is the headspace: vertical polyethylene tanks see their most demanding wall conditions at the vapor-saturated zone above the liquid line, not down where you can see and inspect. The HDPE tank wall thickness guide explains why and how the ASTM D1998 sizing logic addresses it. On fittings, see the technical drawing on this page for the dimensional detail, then call us at 866-418-1777 to confirm the exact outlet, vent, and fitting configuration before you buy valves or plumbing for this tank. If it is feeding a grey-water, rainwater, or HVAC condensate reuse train, the industrial water reuse tank topology guide covers how to band quality and sequence stages around storage like this.
Freight
This 1350 gallon Enduraplas vertical storage tank ships by LTL freight, quoted live to your ZIP from the nearest stocking plant: Converse, TX for Southern and Western destinations, or Neche, ND for the Northern tier and Midwest. Knowing which plant is closest lets you estimate your LTL distance before you even run a quote. Get your freight cost in seconds with the Freight Cost Estimator, or call us at 866-418-1777 and we will route it from the closest plant and walk you through offload requirements for a black vertical tank this size.
