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 ?Direct Flow 500 , 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.