The Snyder Industries 360 Gallon Vertical Double Wall Waste Oil Tank (SKU SII-5760102N95703) is a yellow polyethylene double wall tank built so the outer wall doubles as built-in secondary containment, eliminating a separate dike for the volume it holds. It stands 63 inches tall on a 53 x 53 inch square footprint, holds 360 gallons, and carries a 1.5 specific gravity rating, which is the number that governs what you can safely store in it. Filled with water it weighs roughly 3,002 pounds; at its maximum rated contents weight of 1.5 SG fluid it carries about 4,504 pounds. Spread across that 53 x 53 footprint (about 19.5 square feet) the loaded tank puts roughly 231 pounds per square foot on the pad, so size the slab and any structure beneath it for the full mass, not the empty shell.
Will it work for your application
The headline feature for a waste oil collection setup is the integrated filtration on the dump opening: this tank ships with an 18-inch strainer basket manway (#T8159000) that catches debris, rags, and chips at the point of pour, so you are not pulling contamination down into the stored oil. Alongside it you get an 18-inch hinged polypropylene manway with lock for full access and a 2-inch PE bulkhead fitting (BJO #TF220PE) for draw-off or plumbing. The 1.5 SG rating means the tank is engineered for fluids up to 1.5 times the weight of water; waste oil sits well under that ceiling, so confirm your contained fluid's specific gravity against 1.5 before you commit. Because DEF (32.5%) and urea solution (50%) both clear at this 1.5 SG class, the same tank double-serves as a bulk DEF or urea vessel for fleet and roadway operations, with 316SS fittings for DEF and PP/PVC for urea. For full port and dimension placement, see the technical drawing on this page, and if you are still choosing a size, the Tank Sizing Calculator and Tank Sizing Guide will match capacity and footprint to your space.
Chemical compatibility
This tank is polyethylene rated at 1.5 specific gravity. The resin classification is listed as HDLPE but unconfirmed, so verify HDLPE versus XLPE with us before placing it into chemical service. Compatibility is concentration- and temperature-specific, so always check the OEM chemical-resistance chart for your exact conditions. At this 1.5 SG rating the tank is suitable for the following, with the fitting and gasket materials shown:
- 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
- Ferrous Sulfate (20%) - PVC fittings, EPDM gaskets
- Magnesium Chloride (30%) - PVC fittings, EPDM gaskets
- Sodium Carbonate (30%) - PVC fittings, EPDM gaskets
- Urea Solution (50%) - PP/PVC fittings, EPDM gaskets
- Ozonated Water (up to 10 PPM) - PVC fittings, EPDM gaskets
Several chemicals require a heavier 1.9 specific gravity tank rather than this 1.5 SG model, and the gasket and fitting tier changes at that boundary too. If you are storing Ethylene Glycol, Ferric Chloride, Ferric Sulfate, Hydrochloric Acid, Hydrofluoric Acid, Hydrofluosilicic Acid, Hydrogen Peroxide, Peracetic Acid, Phosphoric Acid, Polyaluminum Chloride, Potassium Carbonate, Potassium Hydroxide, Propylene Glycol, Sodium Bisulfate, Sodium Bisulfite, Sodium Hypochlorite, Sodium Thiosulfate, Sulfuric Acid, or Zinc Orthophosphate, do not put it in this tank - step up to the 1.9 SG version. Several of those (Hydrochloric, Hydrofluoric, Hydrogen Peroxide, Peracetic, Phosphoric, Sodium Hypochlorite, Sulfuric) call for Viton or Aflas gaskets rather than EPDM, and Sulfuric Acid specifically needs CPVC fittings, so the hardware spec moves with the SG class. For all chemical decisions, start with the chemical compatibility reference and match gasket material to your fluid.
The mistake to avoid
The most expensive error with a double wall containment tank is treating it as a finished compliance answer on its own. If you are storing regulated waste oil or hazardous waste, the double wall handles secondary containment, but you still owe yourself the freeboard math and an inspection cadence. Read our walkthroughs on RCRA 40 CFR 264.193 secondary containment, Snyder Captor double-wall tanks for SPCC 40 CFR 112, the 110% containment versus UL-142 comparison, and freeboard sizing per ASTM D1998 before you finalize. The second common mistake is mismatching the fitting or gasket material to the fluid; use the materials called out above rather than whatever hardware is on the shelf.
This vertical waste oil double wall tank ships LTL freight from the nearest Snyder Industries origin (Arkansas or Mississippi, depending on your address) quoted live to your ZIP. Get your exact rate with the Freight Cost Estimator, or call 866-418-1777 and we will size, spec, and quote it with you. Confirm the resin classification and your fluid's specific gravity before you order, and we will make sure the tank that leaves the dock is the right one for your service.
