The Chem-Tainer 100 Gallon Double Wall Waste Oil Tank (SKU TC3541DC) is a yellow polyethylene vertical tank built to store used oil and similar fluids while keeping them off the floor and out of the drain. The integral double-wall construction gives you primary storage plus secondary containment in one footprint, and the included oil level gauge lets you read volume at a glance. It holds 100 gallons, stands 41 inches tall on a 35 by 35 inch footprint, and carries a 1.9 specific gravity rating, so it is engineered for fluids well beyond the weight of water. If you are searching for a compact 100 gallon double wall oil tank for a shop or service bay, this is that unit.
Will this tank work for your fluid?
The body is molded polyethylene with a 1.9 specific gravity rating, which tells you how heavy a liquid the tank is built to carry. Plain water weighs about 834 pounds at the 100 gallon fill line; at the 1.9 SG rating, the tank is rated for contents up to roughly 1,585 pounds. Waste oil is lighter than water, so a full charge of used oil sits comfortably inside that envelope. The 41 inch height and 35 by 35 inch footprint make it a tight fit for a shop bay, service garage, or maintenance corner. To confirm volume against your throughput and changeout schedule, run the Tank Sizing Calculator or read the Tank Sizing Guide. One note on plumbing: fitting ports and sizes are not specified in our records for this SKU, so confirm them from the technical drawing on this page or by phone before you order valves and bulkheads.
Chemical compatibility
Sold as a waste oil tank, this unit handles used oil well within its envelope, and most chemicals below are far more aggressive than oil, so the 1.9 SG and polyethylene resin easily cover the intended service. The chemical list is a bonus, not the primary use. One credibility note first: our records carry the resin as HDLPE with a trailing question mark, so confirm HDLPE versus XLPE with us at 866-418-1777 before committing this tank to any acid or oxidizer below. Compatibility always depends on concentration and temperature, so verify your exact conditions against the OEM chemical-resistance chart, which is concentration and temperature specific. The fitting and gasket materials shown are what to specify and source separately; they do not ship with the tank.
- Acetic Acid (60%) - PP/PVC fittings, EPDM gasket
- Aluminum Sulfate (50%) - PVC fittings, EPDM gasket
- Calcium Chloride (40%) - PVC fittings, EPDM gasket
- DEF (32.5%) - 316SS fittings, EPDM gasket
- Ethylene Glycol (100%) - PVC fittings, EPDM gasket
- Ferric Chloride (50%) - PVC fittings, EPDM gasket
- Ferric Sulfate (60%) - PVC fittings, EPDM gasket
- Ferrous Sulfate (20%) - PVC fittings, EPDM gasket
- Hydrochloric Acid (37%) - PVC fittings, Viton gasket
- Hydrofluoric Acid (48%) - PP/PVC fittings, Viton gasket
- Hydrofluosilicic Acid (26%) - PP/PVC fittings, Viton gasket
- Hydrogen Peroxide (50%) - PVC fittings, Viton gasket
- Magnesium Chloride (30%) - PVC fittings, EPDM gasket
- Peracetic Acid (30%) - 316SS fittings, Aflas gasket
- Phosphoric Acid (85%) - PVC fittings, Viton gasket
- Polyaluminum Chloride - PVC fittings, EPDM gasket
- Potassium Carbonate (50%) - PVC fittings, EPDM gasket
- Potassium Hydroxide (saturated) - PVC fittings, EPDM gasket
- Propylene Glycol - PP/316SS fittings, EPDM gasket
- Sodium Bisulfate - PVC/PP fittings, EPDM gasket
- Sodium Bisulfite - PVC/PP fittings, EPDM gasket
- Sodium Carbonate (30%) - PVC fittings, EPDM gasket
- Sodium Hypochlorite (<16.5%, keep this ceiling explicit) - PVC fittings, Viton gasket
- Sodium Thiosulfate (40%) - PVC fittings, EPDM gasket
- Sulfuric Acid (98%) - CPVC fittings, Viton gasket
- Urea Solution (50%) - PP/PVC fittings, EPDM gasket
- Zinc Orthophosphate - PP/316SS fittings, EPDM gasket
- Ozonated Water (up to 10 PPM) - PVC fittings, EPDM gasket
See the full chemical compatibility reference for the complete picture, and match every fitting and gasket to the fluid you are actually storing.
The mistake to avoid
The most common error with a double-wall waste oil tank is treating containment as a substitute for compliance planning. If your installation falls under federal or state aboveground storage rules, the tank is only one piece of the system. Review our walkthroughs on RCRA 40 CFR 264.193 secondary containment, Florida DEP Chapter 62-762 aboveground storage tank compliance, double-wall tanks for SPCC 40 CFR 112, and spillover redundancy and high-level alarm architecture to plan leak detection, inspection cadence, and overfill protection around this tank. The second mistake is plumbing it with the wrong fitting or gasket material; use the compatibility list above rather than reaching for whatever is on the shelf.
This is a double-wall tank with a 35 by 35 inch footprint and a max rated contents weight near 1,585 pounds, so plan for an LTL freight shipment, not a parcel rate. It ships LTL from Hummelstown, PA, with the cost quoted live to your ZIP. Get a number in seconds with our Freight Cost Estimator, or call 866-418-1777 to confirm fitting layout from the drawing, talk through compliance, and lock in delivery before you order.
