The Enduraplas 550 Gallon HDPE Vertical Chemical Storage Tank (SKU 1820000N30) is a high-density polyethylene vertical tank built for stationary bulk chemical storage. It holds 550 gallons and is a strong fit when you need a dedicated poly chemical tank, a vertical HDPE storage tank, or bulk containment sized for a single process feed. Because polyethylene chemistry and wall thickness are matched to the density of the product a tank is rated to hold, the work is in specifying it correctly for your chemical, not just matching the gallon number.
Will it work for your application
Filled to capacity with plain water, this tank carries 4,587 pounds, so the pad, saddle, or containment slab has to support that static load plus the weight of your stored product. Chemicals denser than water weigh more per gallon: multiply 4,587 pounds by your chemical's specific gravity to get a realistic filled weight before you pour a foundation or size a berm. The listed footprint is 64 x 64 inches, but confirm the height and diameter orientation with us before you commit floor space or pour a pad — a 550-gallon vertical is typically taller than it is wide, and we would rather verify the axis than have you build to a number that does not reconcile. Use the Tank Sizing Calculator and the Tank Sizing Guide to check volume and throughput against your process.
Specify it correctly before you order
This listing does not publish a specific-gravity rating, so confirm the tank's rated specific gravity against your chemical before you commit it to service. HDPE and cross-linked polyethylene are not interchangeable for every chemistry, and the rated density of a tank determines whether it will survive your fill for years or fail early. Match the resin and the specific-gravity rating to your actual chemical — not to an assumption — and verify those figures with us for your specific product. That single check is the mistake most bulk buyers skip and the one that most often shortens a tank's life.
Fittings, gaskets, and layout
This listing does not publish a fitting schedule, so call to confirm outlet size, bulkhead and flange options, and gasket material — EPDM versus Viton/FKM — for your chemistry, because the gasket is a common chemical-compatibility failure point that the tank body never shows. Once the schedule is set, plan where the vent, fill, level device, and drain sit; our guide on top fitting placement strategy walks through the layout logic, and level gauge selection for chemical service covers continuous inventory. If the tank will hold a regulated or hazardous product, our guides on label and signage compliance and chemical sampling protocol cover the details inspectors check.
This tank ships LTL freight, quoted live to your delivery ZIP. Enter your ZIP in the Freight Cost Estimator for a rate, confirm chemical suitability against the Chemical Compatibility Database, or call 866-418-1777 and we will help you confirm dimensions, the specific-gravity rating, fittings, and gasket material, then get it delivered.
