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The Nitrous Express NHRA safety blow-off fitting (3000 PSI) replaces the safety blowout disk and lets you attach a blow-down tube so discharge can be routed outside the vehicle as required by NHRA. It fits Lightning 45 bottle valves and NX chrome bottle valves with female threads. The fitting itself accepts the blow-down tube; the original disk is not included.
Nitrous Express NHRA Safety Blow-Off (3000 PSI) Fits All NX Valves w/Female Threads
