Nitrous Express Purge SystemsNitrous Express 11709 NHRA Safety Blow-Off - 3000 psi (fits all NX Valves w/ Female Threads)

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Nitrous Express 11709 NHRA Safery Blow-Off for all NX Valves w/ Female Threads. NHRA rules require the safety blow off to be routed outside the vehicle. This fitting replaces the existing safety blow off fitting and allows you to attach a blow down tube to the safety blow off fitting. Fits lightning 45 and 500 bottle valve and NX chrome bottle valves with female threads. Disk not included. For chrome valves, use with a new disk (part# 11712). When used with a lightning 45 or 500 valve (black), reuse the existing disk in the valve.