The Snyder Industries 4100 Gallon Vertical Chemical Storage Tank (SKU SII-7360000N52) is built for serious bulk chemical service, molded from high density linear polyethylene with a 1.9 specific gravity rating in opaque white. At 130 inches tall on a 102 by 102 inch footprint, it holds 4,100 gallons and is engineered to carry products substantially heavier than water, which is exactly why the SG rating matters. This is a true vertical storage tank for industrial chemical applications, not a water cistern pressed into heavier duty.
Weight, footprint, and the load your pad must carry
Plan the foundation before you plan the chemistry. Empty this tank occupies a 102 x 102 inch footprint; full of water it weighs roughly 34,194 lbs; and at the top of its 1.9 specific gravity rating it is engineered to carry contents up to 64,969 lbs of static load. That 65,000 lb figure drives your pad design, anchoring, and structural feasibility, so confirm your site can support it first. Run your throughput and storage cycle through our Tank Sizing Calculator and the Tank Sizing Guide to confirm 4,100 gallons is the right size for your process.
Will it hold your chemical? Check the SG ceiling
The 1.9 specific gravity rating is the single most important number on this tank, and you can verify your own fluid in one line: your gallons multiplied by 8.34 lbs per gallon multiplied by your fluid's specific gravity must stay under the 1.9 rating and the 64,969 lb maximum. Filled to all 4,100 gallons, that math (4,100 x 8.34 x 1.9) lands right at the 64,969 lb ceiling. Confirm the density of your specific chemical against that limit before you order. This tank ships without a factory fitting package listed; the bulkhead and fitting configuration is specified to order, so confirm outlet size, location, and material to match your chemistry when you place the order.
Chemical compatibility
This tank is molded in HDLPE and rated to 1.9 specific gravity, which covers a broad range of dense industrial chemicals. Compatibility always depends on the resin, the chemical concentration, the fitting material, and the gasket elastomer together, so verify your exact chemistry against the OEM chemical-resistance chart, which is concentration and temperature specific. The chemicals listed as compatible with this tank, with their recommended fitting and gasket materials, are:
- 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 elastomer is where this list earns its keep. As a working rule from the data above: EPDM is the default gasket for salts, glycols, DEF, and urea; Viton steps in for the oxidizers and strong acids, including sodium hypochlorite, hydrogen peroxide, sulfuric, hydrochloric, hydrofluoric, and phosphoric; peracetic acid moves up to Aflas. On fittings, 316 stainless is called for specifically with DEF and peracetic acid, while CPVC handles 98% sulfuric. Matching the wrong gasket to an oxidizer is the most common and most expensive mistake on a chemical tank this size. Confirm your fitting and gasket package against our full Chemical Compatibility Database before ordering.
The mistake to avoid
The single biggest error on a tank like this is buying for water weight and forgetting contents weight. A dense fluid near the 1.9 SG ceiling approaches 64,969 lbs of static load, which is what your pad and anchoring must be engineered around, not the 34,194 lbs of water. Confirm both the fluid density and the gasket/fitting elastomer for your specific chemical and concentration. Where measurement matters, our guide on tank level gauge selection for chemical service walks through radar, ultrasonic, hydrostatic, and magnetostrictive options; for secondary containment, compare engineered approaches in our Snyder Captor Plus 110% containment vs UL-142 SPCC breakdown; and before commissioning, review the multi-standard label and signage compliance and chemical sampling protocol guides.
Freight
This vertical storage tank ships LTL freight from Philippi, WV, quoted live to your ZIP code. Get an exact number through our Freight Cost Estimator or call 866-418-1777 to schedule delivery. Our team can help you confirm the right fitting and gasket package for your chemistry, size the tank to your process, and arrange freight on a 4,100 gallon HDPE vertical chemical storage tank built to carry the heavy, dense products lighter water tanks were never meant to hold.
