Carbon Cylinders are built to DOT and TC specifications. 15-year cylinders DOT only Luminescent band provides greater visibility Hydrostatic testing to be performed every five years 3M Scott carbon cylinder for SCBA users has a lightweight, composite cylinder consisting of an aluminum alloy inner shell with a total overwrap of carbon fiber, fiberglass and an epoxy resin. Working pressure 4500 psi and rated for 30-minute duration based on NIOSH breathing rates.
