Check the listing for details. Nitrous Express 15598 Nitrous Purge Valve Kit. Condition: New. Listed at 188.05 USD. Nitrous Oxide Purge KitNitrous Purge Valve Kit Nitrous Purge Valve Kit; Purge Solenoid; 4AN Adapter Fitting; Push Button Starter; 1/8 in.-1/8 in. NPT Fitting; 1/8 in. NPT to Poly Line Adapter; 36 in. of 1/8 in. Poly Line;SPECIFICATIONS:WARNING CA Proposition 65 Message: Warning: Cancer and Reproductive Harm-www.P65Warnings.ca.gov.FEATURES:Nitrous Purge ValveTake Advantage of Built In Purge Ports On SolenoidsThe NX Purge System is designed to purge the air from your nitrous lines to allow immediate activation of your Nitrous system. This System includes a Lightning solenoid, push button for activation, and a vent tube to direct the purged nitrous out of the solenoid, Also included is a 4AN manifold to run inline with your nitrous feedline.Wow, how do I start to tell the world why NX is different and better than any other company? Lets start with the NX philosophy: All components must be of the highest quality, no off shore junk; 99% of NX products are produced and assembled in the USA; All NX components and systems must be tested and proven before they are shipped to any customers; All horsepower claims must be accurate and dyno proven at the wheel! NX copies no one; we lead the industry in technology and innovation; Never be satisfied with the status quo; Always give the customer more than he expects!If you are having issues with Ebay/Paypal or product questions, please feel free to call us Asa Performance. We’ve been in business for over15 years and are committed to providing excellent products with exceptional service. If you have any questions or problems, we are more than happy to address your concerns.