TUFFSHELL® all-composite Type 4 cylinders are simply the best combination of safety, efficiency and durability available in the market. Their lightweight construction — 30% the weight of steel — improves vehicle range, payload and handling. Reduced fuel consumption is good for the environment and even better for your bottom line. You’ll find TUFFSHELL® cylinders everywhere, as they are used by many well-known car manufacturers. You’ll also find them in 80% of European and 85% of North American transit buses, including Los Angeles, Atlanta, New York City, Washington D.C. and Vancouver. Plus, they are installed in a variety of commercial vehicles, including Class 8 trucks, refuse trucks, concrete mixers and delivery trucks.
We make two types of TUFFSHELL® cylinders:
  • lightweight cylinder with lightweight carbon/glass fiber hybrid wrap
  • even lighter weight cylinder with all carbon fiber wrap
Superior Cylinders
  • High-strength, super-tough construction reduces impact damage and fatigue
  • Dome protection against abrasions and scuffs
  • Polymer liner is corrosion-free
  • Precision-machined valve interface ensures leak-free operation
  • Available in both strap mount and boss mount designs for maximum packaging efficiency
  • Expansive list of standard sizes available for vehicles big and small
  • Designed to be maintenance-free with reduced inspection costs
  • Boss mount design isolates cylinders from torsional forces
Superior Safety
TUFFSHELL® cylinders come equipped with state-of-the-art pressure relief devices. If the ambient temperature surrounding the cylinder reaches 230°F/110°C, the cylinder contents will be vented into the atmosphere. TUFFSHELL® cylinders have proved their durability when tested in the field by severe accidents.

Engineered for Quality, Safety, Durability and Convenience.
With Agility's licensed professional engineers and state-of-the-art 3D CAD and modular components, we can assure quality that's built in from day one. Our test protocols are rigorous and guarantee that our products meet or exceed OEM specifications. Finite element analysis to 8Gs and full 3D modeling make it easy to locate optimum mounting points. Plus, modifications are virtually effortless and can be made on the fly. The result is a solution that is lightweight, durable and easy to install and maintain.
- Agility provides heavy-duty truck and bus OEMs with turnkey factory-installable fuel systems
- All products are designed and engineered by licensed professional engineers using advanced 3D CAD modeling tools
- Agility's fuel systems meet or exceed all applicable safety standards, including NFPA 52, NGV, DOT, FMVSS, SAE and California Title 13 codes and regulations
- Agility’s cylinders are designed, manufactured, tested and qualified according to the requirements of the U.S. Department of Transportation (US DOT), National Highway Traffic Safety Administration (NHTSA), Federal Motor Vehicle Safety Standard (FMVSS) 304, Compressed Natural Gas Fuel Container Integrity. They also meet the requirements of ANSI/NGV 2 (2007), Basic Requirements for Compressed Natural Gas Vehicle (NGV) Fuel Containers. Our cylinders exported globally meet ISO 11439, ECE R110, ADR/TPED, Russian GOST, Korean KGSC and many other national standards.
- Ours are the lightest systems in the industry through the use of steel and aluminum structural frames and composite materials
- We provide complete turnkey service from specification and design through to manufacturing, installation, training and service

There isn't a natural gas vehicle challenge Agility cannot solve
- Agility is able to deliver fuel to engines at controlled temperatures and pressures whether it is LNG which needs to be stored at very low temperatures (-260°F) or CNG which has to be stored at a very high pressure (3,600 psi)
- Agility Fuel Solutions effectively maintain pressure across multiple tanks
- Agility Fuel Solutions use filtration systems to keep everything running effectively
- Agility Fuel Solutions are reliable and safe even in severe duty cycles