sti-P3® double‐wall underground storage tank features a pre‐engineered corrosion protection system that provides ongoing monitoring of corrosion protection. The sti‐P3® system has provided reliable, long‐term performance for over a quarter million steel underground storage tanks.
Meets UL 58, UL 1746‐Part 1 and ULC‐S603.1
The only UST design which allows on‐going monitoring of corrosion protection, providing peace of mind
Can be used with a variety of leak detection systems
Steel provides complete compatibility with all blends of ethanol and biodiesel fuels
Impermeable to all petroleum products and vapors
First national UST corrosion control standard with over 40 years of successful performance
Flat end design reduces the cost of installation and increases site layout flexibility
Steel inner tank provides structural strength, while its exterior wall is continuously protected with three methods of corrosion control
Various backfill options allow for money‐saving installation
Capacities range up to 60,000 gallons
Single or double‐wall steel construction
Steel construction allows for recycling
Low cost compartments and customization
Built to nationally‐recognized STI standards with strict third‐party quality control inspection program
Sti-P3® is available from an extensive group of Steel Tank Institute fabricators who participate in the STI Quality Control Program. Under the program, independent quality control inspectors make unannounced visits to STI members, ensuring fabrication to the highest possible standards.