PST Type 1 CNG cylinders are made of steel. Thought these are the heaviest (albeit safest) CNG cylinder option, they are the most cost-effective for car and light duty vehicle applications when considering cost differential between type 1 & 2 and type 3 & 4 cylinders.
(see the “PST Type 2 CNG Cylinder tab”)
• Unmatched durability
• Lowest cost
Type 1-Steel-Tube-250 Bar Working Pressure
Standard-DOT/ANSI FMVSS 304/NGV2-2007