Nitrous Oxide BottleNitrous BottleNitrous Bottle; 15 lb.; w/Standard Pure-Flo Valve;SPECIFICATIONS:Color: PaintedWARNING CA Proposition 65: YesWARNING CA Proposition 65 Message: Warning: Cancer and Reproductive Harm-www.P65Warnings.ca.gov.FEATURES:Weights .5 lbs. Less Than Old Style Brass Valve4AN Default- 6AN or 8AN available on requestTough And Attractive Powder coated FinishLightning 500 Bottle ValveEven with the use of a high flowing solenoid, you still have to have precise flow to the solenoid. So when we set out to create the highest flowing nitrous solenoid, we had to spend equal time addressing the nitrous bottle valve flow. Steps were taken to match the flow characteristics of the bottle valve with that of the solenoid. Our final results led to the highest flowing bottle valves on the market.Wow, how do I start to tell the world why NX is different and better than any other company? Lets start with the NX philosophy: All components must be of the highest quality, no off shore junk; 99% of NX products are produced and assembled in the USA; All NX components and systems must be tested and proven before they are shipped to any customers; All horsepower claims must be accurate and dyno proven at the wheel! NX copies no one; we lead the industry in technology and innovation; Never be satisfied with the status quo; Always give the customer more than he expects!