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 D-4 bottle refill fitting.
- All aluminum housing
- .500'' Straight thru flow
- 5/8'' siphon tube
- Integrated Gauge port
- Locking handle to prevent accidental opening
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