Nitrous Oxide System - NOS Nitrous Bottle (14745NOS)Nitrous Bottle Capacity 10lbs. Length: 21" Diameter: 7" Hi Flo Valve Electric Blue Finish 10 lb Bottles For Optimum Weight Reduction Distinctive High Tech Look DOT Approved Carbon Fiber Wrapped Bottle Weighs Half Of Standard NOS Nitrous Bottles are offered in a variety of sizes, finishes, and constructions to suit your needs. Approved by the D. O. T. and CGA, NOS bottles feature a built in siphon tube! Note: All bottles shipped empty.