The Chem-Tainer 150 Gallon Vertical Double Wall Waste Oil Tank (SKU TC3449DC) is a yellow polyethylene tank built for waste oil collection and other heavier-than-water fluids, with the inner tank fully enclosed by an integral outer wall for built-in secondary containment. It holds 150 gallons, stands 49 inches tall on a 34 x 34 inch square footprint, and carries a 1.9 specific gravity rating - the high SG band is what lets it safely hold dense contents that would overstress a standard 1.5 SG tank. A factory oil level gauge is included so an operator can read tank level for routine inspection without opening the top.
Will this double wall tank work for your job?
This is a true vertical double wall tank: the secondary containment is part of the unit, so you do not need a separate spill pallet or berm to capture a primary-tank leak. At 150 gallons the full water weight is roughly 1,251 lb, and the 1.9 SG rating supports a maximum rated contents weight of about 2,377 lb - confirm your floor or pad can carry that loaded figure plus the tank's own weight before you set it. The 34 x 34 inch footprint and 49 inch height make it a compact double wall tank for a shop bay, fluid-handling room, or fenced equipment yard. For waste oil, which is lighter than water, the 1.9 SG band gives you a wide safety margin, so the heavier rating is headroom, not a constraint. Use the Tank Sizing Calculator and the Tank Sizing Guide if you need to confirm capacity against your generation rate and pickup schedule.
Chemical compatibility
This tank is molded from polyethylene and carries a 1.9 specific gravity rating. The resin is recorded as HDLPE in our data but is not yet confirmed. Decision rule: for any of the aggressive acids and oxidizers listed below - hydrochloric, hydrofluoric, 98% sulfuric, 85% phosphoric, peracetic, or sodium hypochlorite - confirm linear (HDLPE) versus crosslinked (XLPE) resin with us before you order, because the listed compatibility assumes a specific resin the data has not verified, and the two polyethylenes differ in chemical resistance. Always size to the heaviest fluid you will store; concentration and temperature drive real-world compatibility, so check the OEM chemical-resistance chart for your exact concentration and operating temperature.
Drawing only from the verified compatibility data for this tank, the following solutions are listed as compatible at the noted concentration, with the recommended fitting and gasket materials:
- 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 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
Match the gasket family to the fluid - several acids and oxidizers above call for Viton or Aflas rather than EPDM, and the wrong elastomer is the most common containment failure on chemical tanks. For full chart-driven guidance see our chemical compatibility resource and verify against the OEM chemical-resistance chart for your concentration and temperature.
Compliance and the mistake to avoid
If you are storing regulated waste oil or hazardous waste, the secondary containment is only part of the picture. Review RCRA 40 CFR 264.193 secondary containment for leak-detection and inspection requirements - the included oil level gauge supports the periodic level checks those inspection cadences call for - and our SPCC 40 CFR 112 walkthrough for spill-prevention planning. If you operate in Florida, the Florida DEP Chapter 62-762 rules cover registration and closure. Note that this tank does not include a high-level alarm or automatic cutoff (none is listed in its specs); for loadout safety, pair it with the redundant safeguards in our guide on high-level alarm architecture and automatic cutoff. The mistake to avoid: relying on the double wall alone while skipping the SG check and the gasket match - confirm the 1.9 SG rating covers your fluid and pair every fitting with the correct gasket from the chart above. Fitting and penetration sizes and locations are not part of the spec data we publish for this tank, so confirm them by phone before you order.
This tank ships LTL freight from our plant in Hummelstown, PA, with freight quoted live to your ZIP. Get a freight estimate with the Freight Cost Estimator, or call 866-418-1777 to confirm specs, fitting layout, lead time, and the best routing for your location.
