The Chem-Tainer 2000 Gallon 15-degree open-top cone-bottom tank is a polyethylene bulk vessel built for full-drain chemical and process service where you need solids and residual liquid to move toward a single bottom outlet instead of pooling on a flat floor. It stands 86 inches tall on an 80 x 80 inch footprint, holds a nominal 2,000 gallons, and carries a 2.0 specific gravity rating - the high end for poly storage, which is why it appears in searches for an open top tank, cone bottom tank, and cone tank used in heavier chemistries. Before you spec it, check your chemical against our Chemical Compatibility Database at your real concentration and temperature.
Will this tank work for your application?
Confirm two numbers before you commit: weight and specific gravity. Filled with water this tank carries roughly 16,680 lb; at its maximum 2.0 SG rating the contents alone can reach about 33,360 lb, so your stand, ring wall, or concrete pad and any structural cone support must be engineered for that load, not for the water figure. The 2.0 SG rating means the wall thickness was designed to hold liquids up to twice the density of water - the real ceiling is the specific gravity of YOUR chemical at YOUR storage temperature, so check it against the dimensions and outlet shown on the technical drawing on this page. Because this is a 15-degree cone, drainage is gradual and a low-angle cone leaves more heel and is slower with settling solids than a 30 or 45-degree cone; our 30 vs 45 degree drainage comparison and the cone-bottom buyer's guide walk through that trade-off. As an open-top vessel, this tank has no sealed lid in its base configuration, and no factory fittings are recorded for this build - the bottom outlet, vents, and any bulkhead penetrations are spec'd separately to your layout, so plan your top penetrations deliberately with our fitting placement strategy. If you are weighing this against other 2,000-gallon verticals, the 2,000 gallon vertical comparison covers the field. Size the vessel against your real working volume with the Tank Sizing Calculator and Tank Sizing Guide.
Chemical compatibility
This tank is molded in polyethylene with a 2.0 specific gravity rating. The resin is recorded as HDLPE but is unconfirmed - confirm HDLPE versus XLPE (cross-linked) with us before putting this tank into chemical service, because the two resins resist different chemistries. The chemicals below are supported per the OEM chemical-resistance chart, which is concentration- and temperature-specific; always match your exact concentration and operating temperature before ordering, and pair the tank with the correct fitting and gasket material listed:
- Acetic Acid 60% - PP/PVC fittings, EPDM gaskets
- Aluminum Sulfate 50% - PVC fittings, EPDM gaskets
- Calcium Chloride 40% - PVC fittings, EPDM gaskets
- DEF (Diesel Exhaust Fluid) 32.5% - 316SS fittings, EPDM gaskets
- Ethylene Glycol 100% - PVC fittings, EPDM gaskets
- Ferric Chloride 50% - PVC fittings, EPDM gaskets
- Ferric Sulfate 60% - PVC fittings, EPDM gaskets
- Ferrous Sulfate 20% - PVC fittings, EPDM gaskets
- Hydrochloric Acid 37% - PVC fittings, Viton gaskets
- Hydrofluoric Acid 48% - PP/PVC fittings, Viton gaskets
- Hydrofluosilicic Acid 26% - PP/PVC fittings, Viton gaskets
- Hydrogen Peroxide 50% - PVC fittings, Viton gaskets
- Magnesium Chloride 30% - PVC fittings, EPDM gaskets
- Peracetic Acid 30% - 316SS fittings, Aflas gaskets
- Phosphoric Acid 85% - PVC fittings, Viton gaskets
- Polyaluminum Chloride - PVC fittings, EPDM gaskets
- Potassium Carbonate 50% - PVC fittings, EPDM gaskets
- Potassium Hydroxide saturated - PVC fittings, EPDM gaskets
- Propylene Glycol - PP/316SS fittings, EPDM gaskets
- Sodium Bisulfate - PVC/PP fittings, EPDM gaskets
- Sodium Bisulfite - PVC/PP fittings, EPDM gaskets
- Sodium Carbonate 30% - PVC fittings, EPDM gaskets
- Sodium Hypochlorite under 16.5% - PVC fittings, Viton gaskets
- Sodium Thiosulfate 40% - PVC fittings, EPDM gaskets
- Sulfuric Acid 98% - CPVC fittings, Viton gaskets
- Urea Solution 50% - PP/PVC fittings, EPDM gaskets
- Zinc Orthophosphate - PP/316SS fittings, EPDM gaskets
- Ozonated Water up to 10 PPM - PVC fittings, EPDM gaskets
Note the gasket calls: chemistries like hydrochloric acid, hydrogen peroxide, phosphoric acid, sulfuric acid, sodium hypochlorite, and peracetic acid require Viton or Aflas rather than EPDM - getting the gasket wrong is the most common and most preventable failure on chemical tanks. The concentration ceilings are load-bearing too: sodium hypochlorite is rated under 16.5% and sulfuric acid at up to 98%, so do not over-read them. Verify every chemical against the full Chemical Compatibility Database at your concentration and temperature before you order.
The mistake to avoid
The single biggest error on a tank like this is treating the 2.0 SG rating as a guarantee for any chemical. It is a structural ceiling, not a chemical clearance - a fluid at 1.6 SG can be perfectly compatible with the poly wall yet still demand confirmation that your specific concentration, temperature, and resin type (HDLPE vs XLPE) all line up. Confirm the resin, confirm your chemical's SG and concentration against the OEM chart, and spec the matching fitting and gasket material from the list above before purchase.
Freight
This tank ships LTL freight from Chem-Tainer's West Babylon, NY plant, quoted live to your ZIP - at roughly 16,680 lb full of water and an 80 x 80 inch footprint, it moves on a dedicated pallet or skid and is not a parcel item. Get a real number for your delivery address with our Freight Cost Estimator, or call 866-418-1777 to talk through fittings, resin confirmation, and delivery. We will help you land the right configuration before you buy.
