Nitrous Express DF5 Valve Only for 15lb Bottle (4AN Bottle Refill Fitting)

NX has created the bottle valve against which all others will be judged. The in.Direct Flow 500 in., equipped with .500 orifice and a direct flow, straight through design, is capable of flowing over 2,000 nitrous horsepower. Furnished with a .625 stainless steel siphon tube and a 4AN bottle refill fitting.