Description Carbon Fiber Composite Scuba Tank with Valve A metal liner inside (usually aluminum or steel). Fully wrapped with carbon fiber and resin. Sometimes also mixed with glass fiber or Kevlar. Key features: ✅ Much lighter than all-steel tanks. ✅ Can hold very high pressure (300 bar / 4500 psi). ✅ Common in SCBA (firefighters), paintball, military, and some diving.
