The Snyder Industries 550 Gallon Vertical Chemical Storage Tank is built for bulk chemical service, molded in white High Density Linear Polyethylene (HDLPE) and rated to a 1.9 specific gravity. It stands 75 inches tall on a 48-inch outside diameter (48 x 48 footprint) and holds 550 gallons. The 1.9 SG rating is the number that matters for chemical duty: it qualifies the wall to carry contents up to 1.9 times the weight of water.
Will it work for your application?
This is a vertical storage tank with a round 48 x 48 footprint, so it drops onto a containment pad or skirted base without the floor space a horizontal tank demands. Check the rating arithmetic yourself: 550 gallons of water weighs about 4,587 lb (SG 1.0), and this tank is rated to hold roughly 8,715 lb of contents — which is 4,587 x 1.9, exactly the SG headroom that lets it run dense chemistries like 50% ferric chloride or 98% sulfuric acid (within the compatibility notes below). For a foundation or containment-pad designer, max-rated load over the 16 sq ft footprint works out to about 545 lb per square foot of bearing pressure. To size the tank against your fill volume and pump rate, run the numbers through our Tank Sizing Calculator and the Tank Sizing Guide.
Chemical compatibility
This tank is molded HDLPE rated to 1.9 specific gravity. Always verify against the OEM chemical-resistance chart at your exact concentration and operating temperature before ordering fittings and gaskets. The pattern across the documented chemistries is worth knowing up front: oxidizers and strong acids drive Viton gaskets, DEF and peracetic acid step up to 316 stainless, and everything else runs PVC with EPDM. Compatible chemistries documented for this tank, with fitting and gasket materials called out, include:
- Acetic Acid 60% — PP/PVC fittings, EPDM gaskets (details)
- Aluminum Sulfate 50% — PVC fittings, EPDM gaskets (details)
- Calcium Chloride 40% — PVC fittings, EPDM gaskets (details)
- DEF 32.5% — 316SS fittings, EPDM gaskets (details)
- Ethylene Glycol 100% — PVC fittings, EPDM gaskets (details)
- Ferric Chloride 50% — PVC fittings, EPDM gaskets (details)
- Ferric Sulfate 60% — PVC fittings, EPDM gaskets (details)
- Ferrous Sulfate 20% — PVC fittings, EPDM gaskets (details)
- Hydrochloric Acid 37% — PVC fittings, Viton gaskets (details)
- Hydrofluoric Acid 48% — PP/PVC fittings, Viton gaskets (details)
- Hydrofluosilicic Acid 26% — PP/PVC fittings, Viton gaskets (details)
- Hydrogen Peroxide 50% — PVC fittings, Viton gaskets (details)
- Magnesium Chloride 30% — PVC fittings, EPDM gaskets (details)
- Peracetic Acid 30% — 316SS fittings, Aflas gaskets (details)
- Phosphoric Acid 85% — PVC fittings, Viton gaskets (details)
- Polyaluminum Chloride — PVC fittings, EPDM gaskets (details)
- Potassium Carbonate 50% — PVC fittings, EPDM gaskets (details)
- Potassium Hydroxide (saturated) — PVC fittings, EPDM gaskets (details)
- Propylene Glycol — PP/316SS fittings, EPDM gaskets (details)
- Sodium Bisulfate — PVC/PP fittings, EPDM gaskets (details)
- Sodium Bisulfite — PVC/PP fittings, EPDM gaskets (details)
- Sodium Carbonate 30% — PVC fittings, EPDM gaskets (details)
- Sodium Hypochlorite (<16.5%) — PVC fittings, Viton gaskets (details)
- Sodium Thiosulfate 40% — PVC fittings, EPDM gaskets (details)
- Sulfuric Acid 98% — CPVC fittings, Viton gaskets (details)
- Urea Solution 50% — PP/PVC fittings, EPDM gaskets (details)
- Zinc Orthophosphate — PP/316SS fittings, EPDM gaskets (details)
- Ozonated Water (up to 10 PPM) — PVC fittings, EPDM gaskets
Cross-check every chemical against our Chemical Compatibility Database at your real concentration and temperature before specifying hardware.
The mistake to avoid
The most common error on a tank like this is matching the wall resin but ignoring the fitting and gasket chemistry. A 1.9 SG HDLPE wall handles the static load of dense chemicals, but bolt on the wrong gasket and you get a leak at the bulkhead, not the wall — that is why sodium hypochlorite, hydrochloric, phosphoric, and sulfuric acid call for Viton (and CPVC on concentrated sulfuric), while DEF and peracetic acid step up to 316 stainless. Size your fittings and gaskets off the compatibility chart per chemical before you order. For instrumentation on chemical duty, the level gauge selection guide walks through radar vs ultrasonic vs hydrostatic options; the label and signage compliance guide covers NFPA 704 and GHS placarding once installed. If you need secondary containment, compare approaches in the Snyder Captor Plus 110% containment write-up, and use the chemical sampling protocol guide for ongoing QA. Dimensions and fitting locations are on the technical drawing on this page.
This tank ships LTL freight, quoted live to your ZIP from the nearest Snyder plant — Lincoln, NE; Marked Tree, AR; or Philippi, WV. Get a freight estimate in seconds with our Freight Cost Estimator, or call 866-418-1777 to confirm fittings, lead time, and the closest shipping point for your project.
