Roth Double Wall Tank Plus Package, 165 Gallon

The inner tank is a seamless, blow-molded high-density polyethylene vessel that is completely leak-proof and corrosion-resistant, while the outer tank is weld-free galvanized steel with an oil and fire-resistant roll-seamed seal that acts as a secondary containment barrier. Together, this two-layer design is engineered to prevent spills, leaks, and fires, providing a significantly higher level of protection than a single-wall tank.

The Plus Package bundles the 165-gallon Double Wall Tank with three key accessories: an Optical Leak Alarm, a Fluid Level Gauge, and a Lockable Fill Cap with Vent. These components are all included, so you do not need to source leak detection or level monitoring hardware separately.

Yes — the included Fluid Level Gauge lets you visually monitor how much fluid remains in the tank without opening the fill cap, making routine checks faster and more convenient.

The vent allows air pressure to equalize inside the tank during filling and as temperatures fluctuate, preventing vacuum lock or unwanted pressure buildup. The lockable design secures the cap against unauthorized access while the vent ensures the tank breathes safely during normal operation.

The Optical Leak Alarm provides an active early-warning layer on top of the passive secondary containment offered by the double wall structure. If a leak develops, the alarm triggers an alert so you can respond before fluid escapes into the surrounding environment.

The tank measures 28 inches wide by 29 inches deep by 65 inches tall (approximately 5 feet 5 inches high), giving it a relatively narrow footprint that can fit in confined spaces. The tall, upright profile means it uses vertical space efficiently rather than spreading across a wide floor area.