Because you have every reason to insist on more...
now ready to hold biofuels (up to B20)ROTH Double-Wall Oil Storage Tanks offer the following compare to a standard single wall steel tank:

• MORE FOR THE ENVIRONMENT
  Roth double-wall tanks are designed to offer the highest level of environmental protection. Avoid oil spills and leaks caused by defective pipes, couplings or fittings which are located underneath the tank.* Every inner Roth tank is made out of blow-molded, high-density polyethylene that is seamless, absolutely leak-proof and corrosion-resistant. In addition, Roth tanks feature top connections to ensure the oil stays where it should. The outer tank is made of lead-proof corrosion resistant steel which is capable of containing at least 110% of the capacity of the inner tank for maximum protection.
• MORE FOR YOUR SAFETY
  Roth tanks are completely rust-free, inside and out. Minimize the potential dangers and disasters of oil spills and leaks caused by corrosion.* The outer tank is made out of galvanized steel, rollseamed (no welds) with an oil and fire resistant seal, making it one of the safest and most reliable tanks on the market. Roth uses state-of-the-art technology to ensure maximum storage safety and minimum space requirements.
• MORE QUALITY
  At Roth, we refuse to compromise on material or construction. Forget about the problems of oil odors and the dangers of oil leaks.* Roth tanks exceed the most recent industry safety regulations. Quality control of our finished products is carried out according to exacting standards, ensuring consistent superior quality. Each tank undergoes thorough testing, including ultrasound tests to ensure optimal thickness of plastic and pressure testing to ensure the tank is sealed completely. Roth tanks can be used for heating oil, diesel and bio fuels (up to B20).
• MORE THAN 4 MILLION TANKS INSTALLED
  Since 1971 more than 3 million Roth tanks have been installed in Europe and North America. Roth tanks last longer than ever before due to the outstanding quality and the unbeatable guarantee. That is why Roth tanks enjoy such an enviable reputation.
  *subject to limitations and conditions described in the warranty certificate
• MORE WARRANTY THAN THE INDUSTRY AVERAGE
  

  Roth Industries has extended its current warranty policy to a 30-year limited warranty.  This warranty change covers failure of the tank due to workmanship or material defects as well as failure of the internal tank due to internal corrosion (the manner in which all steel tanks fail).  The warranty also includes $2M of insurance against property damages caused by spill.

  
  

Dimensions for individual tanks

Dimensions for grouped tanks