The Smoke machine EVAP port adapter & Nozzle kit : Includes: 1*PCS of smoke cone nozzle 1*PCS of EVAP service port fitting(M12 x 1.5mm) 1*PCS of Schrader valve removal tool(with 2 schrader sizes) Compatibility: The barb(0.34”OD) end of this nozzle is already attached with a 59”/1.5m long elastic silicone rubber tube for you.And please note that the tube is a kind of elastic silicone,so it can basically be plugged into 0.25”-0.4” smoke outlet holes.All you need to do is to make sure your smoke machine outlet hole is within 0.25”-0.4”. For all smoke/vacuum leak detection machines as well as Redline, Autool, OTC Leak Tamer, Autoline Pro, and other smoke machines(only if the service port suits for M12 x 1.5mm threat).