The Blue-Point Universal Fuel Tank Filler Neck Adapter from Snap-on (P/N EELDGASCAP) pops on the filler neck of virtually any vehicle for easy EVAP leak testing. The one-size-fits-all adapter creates an airtight seal, and can be reused over and over again.
To use, simply remove the gas cap, pop on the adapter cap, and connect a smoke machine or any leak detection device. The adapter is perfect for smoke testing or pressure/vacuum-decay testing the EVAP system.
The Blue-Point Adapter is made of a special substrate that won't break down or crack, and is backed by a five-year warranty.