The I-S purge kit insures a supply of fresh liquid nitrous at the solenoids for instant and repeatable nitrous injection. It is an integral part of any nitrous system! Purging bleeds both accumulated air and nitrous vapor from the supply lines that can cause a lag time in the delivery of liquid nitrous to the system. Our kits come with a solenoid, a stainless steel tube, a push button, and blue OR black fittings in your choice of -4, -6, or -8.
**NOTE** Purge kits should always be powered by a relay.