Chem-Tainer 75 Gallon 30 Degree Plastic Vertical Cone Bottom Tank with Poly Stand

The 75 Gallon 30 Degree Vertical Cone Bottom Tank with Poly Stand from Chemtainer is a closed-top polyethylene tank built for full drainage and batch chemical service. The 30-degree cone bottom keeps solids moving toward the outlet instead of settling, and the included poly stand elevates the cone so you can plumb a bottom drain and empty the tank completely between batches. At 30 inches in diameter and 35 inches tall with an 8-inch lid, it fits a tight footprint while giving you a true cone-drain vessel for mixing, dosing, and settling work.

Will it work for your job?

This tank holds 75 gallons and carries a 2.0 specific gravity rating, so it is built to handle heavier-than-water chemistry, not just plain water. Empty weight is 75 lb. Filled with water it carries about 626 lb, and at its full 2.0 SG rating it can hold up to roughly 1,251 lb of contents. That entire fully loaded weight rides down through the poly stand legs onto a 30-inch-diameter footprint, so the pad has to be rated for the point loads under the stand feet, not spread flat like a floor-supported tank. Two access notes on record: the 8-inch lid is the only top opening specified, so any mixer shaft, dip tube, or level sensor has to pass through it, and the cone outlet size is not listed here, so confirm that fitting size with us before you buy valves or camlocks. Review the technical drawing on this page for the port and stand geometry, and use the Tank Sizing Calculator and Tank Sizing Guide if you need to confirm volume for your batch size.

Chemical compatibility

This is a polyethylene tank with a 2.0 SG rating. The resin is listed as HDLPE, but the record is not fully confirmed — confirm HDLPE versus XLPE (crosslinked) with us before committing it to chemical service, since the two resins carry different resistance profiles. Per the Snyder Industries OEM chemical resistance chart, this SG-2.0 tank suits a broad range of chemistries when paired with the correct fittings and gaskets. A 75-gallon cone tank is a common choice for DEF and urea blending or dispensing: DEF (32.5%) calls for 316SS fittings and EPDM gaskets, while urea solution (50%) runs on PP/PVC with EPDM. Other compatible examples include sulfuric acid (98%, CPVC fittings, Viton gaskets), hydrochloric acid (37%, PVC/Viton), sodium hypochlorite (under 16.5%, PVC/Viton), ferric chloride (50%, PVC/EPDM), phosphoric acid (85%, PVC/Viton), hydrogen peroxide (50%, PVC/Viton), and aluminum sulfate (50%, PVC/EPDM). The chart is concentration- and temperature-specific — match fitting and gasket material to your exact chemical, concentration, and temperature. Browse the full Chemical Compatibility Database before you order.

The mistake to avoid

The common error on cone-bottom chemical tanks is treating the SG rating and hardware pairing as optional. This tank is rated to 2.0 SG; select the fitting and gasket combination the chart calls for — the wrong gasket elastomer, such as EPDM where Viton is required, fails long before the tank does. And do not put any chemical into it until the HDLPE-versus-XLPE resin question is settled for your specific chemistry.

This 75 gallon cone bottom tank with poly stand ships LTL freight, quoted live to your ZIP from the nearest Chemtainer plant — Merced, CA; West Babylon, NY; or facilities in FL, HI, and PA. Get a freight quote with the Freight Cost Estimator, or call 866-418-1777 to confirm resin, cone outlet size, fittings, and freight before you buy.