NOS offers DOT-approved nitrous bottles in a variety of sizes and finishes to suit your needs. The bottles come with an NOS/CGA-approved Hi-Flo valve and built-in siphon tube. For extra safety, NOS has designed an exclusive blow-off venting system. If your bottle is overfilled or if pressure increases beyond the maximum safety level, the vent opens and discharges the nitrous into a safe place.
