The Snyder Industries 4400 Gallon Heavy Duty Cone Bottom Tank is a black, full-drain vessel molded in high density linear polyethylene (HDLPE) and rated to a 1.9 specific gravity, which is the high-density build you want when the contents are heavier than water. It stands 200 inches tall on a 90 x 90 inch footprint, so plan your pad and overhead clearance before ordering. The cone bottom drains the tank completely to the outlet, which matters for batching, settling, and clean-out between chemical changes. Buyers searching for a cone bottom tank, a cone tank, or a Snyder cone in black are usually solving for exactly this: total drain-down plus chemical-grade resin in one package.
Will it hold what you're putting in it?
The 1.9 SG rating governs this decision. Filled with water (SG 1.0) the contents weigh about 36,696 lb; at the tank's maximum rated specific gravity the contents can reach roughly 69,722 lb. That spread tells you how much heavier-than-water product this shell is engineered to carry. The 1.9 figure is Snyder's heaviest-duty cone rating, so there is no heavier shell to step up to — if a product's specific gravity ever exceeds 1.9, you reduce fill height rather than assume the tank covers it. Most listed chemicals clear it comfortably: even 98% sulfuric acid sits below 1.9, so a full tank stays within rating. To confirm how a 4400-gallon cone fits your process, run the numbers through the Tank Sizing Calculator and the Tank Sizing Guide.
Fittings and access
Per the technical drawing on this page, this tank is configured with a flange, an 18" PE threaded/vented fitting, and a manway with 15" access. The vented threaded fitting matters on a sealed cone-bottom installation, because filling and draining a tank this size without proper venting can collapse or balloon the shell. The 15-inch manway access is what makes the between-chemical clean-out physically possible on a vessel this size — you can reach in to flush and inspect the cone wall before re-gasketing for a new product. Confirm your inlet, outlet, and vent plan against the drawing before you plumb it, and spec your bulkhead and valve fitting materials to the chemical you're storing (see the compatibility guidance below). For stand and gauge decisions, the Cone Bottom Tank Stand Compatibility Matrix and the level gauge selection guide are worth reading first.
Chemical compatibility
This shell is HDLPE rated to 1.9 SG, which supports a broad range of chemical service when the fittings and gaskets are matched correctly. The resin designation reads HDLPE here; if your data source for this tank ever shows the resin with a trailing question mark, confirm HDLPE versus XLPE before committing it to chemical service, since crosslinked and linear polyethylene differ in chemical resistance. Always verify against the OEM chemical-resistance chart at your specific concentration and temperature.
Material exceptions — do not default to PVC/EPDM: sulfuric acid at 98% needs CPVC fittings, not standard PVC. Peracetic acid needs 316SS fittings with Aflas gaskets. The strong-acid and oxidizer group — hydrochloric, phosphoric, sulfuric, hydrogen peroxide, sodium hypochlorite, and both hydrofluorics — needs Viton gaskets rather than EPDM. Check your chemical against this list before you order valves and seals.
Chemicals this tank supports, with the fitting and gasket materials to pair with each:
- Acetic Acid (60%) — PP/PVC fittings, EPDM gaskets
- Aluminum Sulfate (50%) — PVC fittings, EPDM gaskets
- Calcium Chloride (40%) — PVC fittings, EPDM gaskets
- DEF (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 (<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
The heaviest listed services — ferric chloride at 50%, calcium chloride at 40%, sulfuric at 98% — approach but stay under the 1.9 ceiling, so a full tank of those products is within rating. Lighter services such as DEF at 32.5%, ethylene glycol, propylene glycol, and ozonated water use only a fraction of the structural margin. The mistake to avoid on a tank this size is reusing one gasket and fitting spec across a chemical change without rechecking; match each chemical to the materials above and verify against the OEM chemical-resistance chart at your exact concentration and temperature. Full details live in our Chemical Compatibility Database. For hazard labeling on a bulk vessel this large, the tank labeling and signage compliance guide walks through NFPA 704, GHS, and DOT placarding, and if your application involves secondary containment, the Snyder Captor 110% containment comparison covers the SPCC angle.
This tank ships LTL freight from the Snyder plant in Lincoln, Nebraska, and freight is quoted live to your ZIP — a 200-inch-tall cone is an oversize load, so get a real number before you commit. Use the Freight Cost Estimator for an instant quote to your delivery point, or call us at 866-418-1777 to talk through fittings, containment, and delivery on a tank this size.
