The Enduraplas 550 Gallon White Cone Bottom Tank is built for full-drainage chemical batching and dosing, where you need every gallon to gravity-feed out the bottom instead of leaving sediment or product behind. This is a 550-gallon natural white cone bottom tank molded from polyethylene in Neche, North Dakota, measuring 60 inches in diameter and 59 inches tall on a 60 x 60 inch footprint. The natural white wall lets you eyeball the liquid level without opening the lid, which matters when you are tracking a chemical batch. Compared with a vertical storage tank, the cone bottom drains to a single low point, so this is the right body style for slurries, settling solids, and any chemical you want to empty completely between batches.
What this cone bottom tank handles and how to size it
This cone bottom tank carries a 1.9 specific gravity rating, the number that governs what you can safely store in it. At 1.9 SG it is rated for heavy chemicals well past the weight of water. Full of plain water the tank holds about 4,587 pounds of contents; at its maximum rated 1.9 SG loading it is engineered for up to 8,715 pounds of contents. Use those two numbers to plan your stand, anchoring, and floor loading. A cone bottom tank must sit on a matching cone bottom stand or skirt that supports the full sloped section. Run your batch volume through the Tank Sizing Calculator and the Tank Sizing Guide before you commit, and if you are matching this body to a support structure, the Cone Bottom Tank Stand Compatibility Matrix and the 550 Gallon Cone Bottom Tank with Poly Stand buyer's guide walk through the options.
Chemical compatibility
This tank is polyethylene rated to 1.9 specific gravity, which is at the top of the SG range, so it covers heavy chemical service without a higher-SG step-up. The exact resin designation is not confirmed in our data, so confirm the resin type with us at 866-418-1777 before you commit it to chemical service. Crosslinked and linear polyethylene behave differently against aggressive chemicals, and that distinction matters most for the strong acids and oxidizers on this list, so resin confirmation is a hard requirement for hydrochloric acid (37%), sulfuric acid (98%), hydrofluoric acid (48%), and sodium hypochlorite (under 16.5%), not an optional check. Compatibility is also concentration- and temperature-specific, so always verify against the OEM chemical-resistance chart for your exact strength and operating temperature.
Within its 1.9 SG rating, this tank is suited to chemicals including Acetic Acid (60%), Aluminum Sulfate (50%), Calcium Chloride (40%), DEF (32.5%), Ethylene Glycol (100%), Ferric Chloride (50%), Ferric Sulfate (60%), Ferrous Sulfate (20%), Hydrochloric Acid (37%), Hydrofluoric Acid (48%), Hydrofluosilicic Acid (26%), Hydrogen Peroxide (50%), Magnesium Chloride (30%), Peracetic Acid (30%), Phosphoric Acid (85%), Polyaluminum Chloride, Potassium Carbonate (50%), Potassium Hydroxide (saturated), Propylene Glycol, Sodium Bisulfate, Sodium Bisulfite, Sodium Carbonate (30%), Sodium Hypochlorite (under 16.5%), Sodium Thiosulfate (40%), Sulfuric Acid (98%), Urea Solution (50%), Zinc Orthophosphate, and Ozonated Water (up to 10 PPM). The most common mistake on a cone bottom chemical tank is pairing the wrong gasket or fitting with the chemical, so spec those to the chart, not to habit:
- Viton gasket required: Hydrochloric Acid (37%), Sulfuric Acid (98%, with CPVC fitting), Phosphoric Acid (85%), Hydrofluoric Acid (48%), Hydrofluosilicic Acid (26%), Hydrogen Peroxide (50%), and Sodium Hypochlorite (under 16.5%).
- Aflas gasket required: Peracetic Acid (30%).
- 316SS fittings required: DEF (32.5%) and Peracetic Acid (30%); Propylene Glycol and Zinc Orthophosphate call for PP/316SS. Speccing PVC for these will not hold up.
- Everything else on the list runs PVC or PP fittings with EPDM gaskets.
Cross-check every chemical against our Chemical Compatibility Database at your exact concentration and temperature before you order. If your service runs heavier than 1.9 SG, call 866-418-1777 and we will route you to the right tank.
Confirm before you order, and freight
Because fitting and outlet placement are not pre-set on this listing, run through a short checklist before you buy: (1) confirm the resin type for your chemical, (2) confirm the fitting and outlet size and placement, (3) confirm a matching cone bottom stand that supports the full sloped section, and (4) get your freight quote to ZIP. See the technical drawing on this page for the outlet and fitting layout, and call us at 866-418-1777 to lock in the details.
This cone bottom tank ships LTL freight from the Enduraplas plant in Neche, North Dakota, quoted live to your ZIP code. Because freight on a 60-inch cone tank is a real line item, get your number up front with the Freight Cost Estimator or call 866-418-1777 and we will quote the lane and confirm resin, fitting placement, and the right stand before you order. Listed price is the tank itself; LTL freight is quoted separately to your destination.
