Double Wall Containment Tanks — Compliance Without Compromise
If your tank fails, your business doesn’t. Double wall systems deliver 110%+ containment, protect against fines, and cut lifecycle costs by replacing external dikes with one integrated solution.
Talk to James — Get the Right Double Wall Tank
Types of Double-Wall Tanks
Extrusion-Wound Double Walls
Up to 50,000 gal, 200°F service. One tank can outlast 2–3 steel or FRP units.
Large Engineered Double Walls
8,850 gal units with dome overlaps, built-in 110% containment, civil work eliminated.
Compact / Day Tanks
35–1500 gal integrated units. Automatic compliance for labs & commercial duty.
Freestanding Dualline™
Flat-bottom, up to 6,500 gal. FDA resins available. One tank = storage + containment.
Why Double Wall Containment Wins
- 110%+ containment: Meets EPA/OSHA rules without dikes.
- Install savings: Pre-assembled units cut procurement cost by ~35%.
- Lifecycle ROI: One double wall tank can outlast 2–3 FRP or steel tanks.
- Size flexibility: From 20 gal day tanks → 50,000 gal monsters.
- Regulatory shield: ASTM D-1998, NSF/ANSI 61, FDA, seismic & wind compliant.
- Insurance benefit: Compliant containment lowers liability & premiums.
- Space savings: Rectangular double walls ship compact, 80% cheaper overseas.
110%
Containment Built In
35%
Install Cost Savings
50k gal
Max Capacity
20 yrs+
Lifecycle ROI
