The Enduraplas 550 Gallon 15 Degree Plastic Vertical Cone Bottom Tank (SKU THC00550) is built for batching, mixing, and full-drain dispensing where the contents need to empty completely through the bottom outlet. The 15-degree cone floor keeps solids and settled product moving toward the drain instead of pooling in a flat base. This unit ships without a stand, so it is priced and configured for buyers who already have a support structure or are pairing it with a separate cone-bottom stand or skid. A cone base carries no load on its own point, so a matching cone-bottom stand or engineered frame rated for your full liquid weight is not optional.
Will it work for your application?
Capacity is 550 gallons in a roughly 60 in. diameter round footprint with a 59 in. overall height. Filled with water this tank carries about 4,587 lb, and that full-load weight is the number to plan your stand, pad, and anchoring around. Confirm on the technical drawing on this page whether the 59 in. figure includes the cone tip, since your stand height and pump layout depend on the cone-to-outlet clearance. The outlet size and fitting schedule are not published on this page — confirm them from the drawing or by phone before you spec pumps, bulkheads, or gaskets. If you are still comparing volumes and dimensions across cone geometries, the Tank Sizing Calculator and Tank Sizing Guide will help you confirm this is the right vertical cone bottom tank for your batch size.
Chemical compatibility
Before you put anything other than water in a poly cone bottom tank, confirm the tank resin and its specific gravity rating for your fluid. The specific gravity rating is not listed in this tank's current spec sheet, so contact us to confirm the resin grade and the maximum specific gravity this shell is rated to hold before chemical service. Match your fluid's specific gravity and concentration to the manufacturer's chemical-resistance chart, which is concentration- and temperature-specific, and size any fittings and gaskets to that same standard once the outlet spec is confirmed. Start with the Chemical Compatibility Database and call us to lock down resin and SG before you order. Until both are confirmed, treat this tank as water-service only.
The mistake to avoid
The costliest error on a cone bottom tank is under-supporting it or over-filling it with a heavy fluid. A 4,587 lb water load already demands a properly rated stand; a denser chemical raises that weight further and can exceed the shell's specific gravity rating. Do not treat "without stand" as a minor detail — the cone base cannot support itself. Confirm the resin, the SG rating, and a stand rated to your full liquid weight first. For sizing and stand pairing on related cone geometries, see our 550 Gallon 20° cone bottom guide, the 300 Gallon 30°, and the 175 Gallon 30° guides — each covers a steeper cone with a stand, so use them for method, not exact specs.
This 550 gallon vertical cone bottom tank ships LTL freight, quoted live to your ZIP through our Freight Cost Estimator. For a freight quote to your ZIP, resin and specific-gravity confirmation, or help matching a cone-bottom stand, call 866-418-1777.
Freight and documents
LTL freight is quoted to your ZIP with the freight cost estimator or by phone at 866-418-1777. The listed price is before freight.
Technical drawing (PDF) for Enduraplas THC00550.
See this tank
Interactive 3D model with live fill. This tank has an interactive 3D model built to its manufacturer dimensions. Rotate it, and set a fill level to see how much liquid it holds at any height. Open the 3D view on the product photo above. Download the 3D model (GLB).
Ready to order?
Add it to your cart at the top of this page, get LTL freight to your ZIP, request a written quote, or call 866-418-1777. The listed price is before freight.
