AutoLine Pro Best Ranked Bladder Adapter 2.0 | Automotive Smoke Testing 1.5 to 6" (38-152mm) Diameter Openings | 3-in-1 Functions as Bladder, Inflatable Plug, and Smoke Diffuser for Water Leak Testing

Great inflatable bladder, great addition to evap/smoke machine kit, spare sleeve in kit as well

Bladder filled my CAI S&B on my Cummins. Sealed well and held long enough for me to find my boost leaks until the bladder slipped out from the intake tube. Its smooth plastic so it was bound to slip after high pressure. Works great and came with spare bladder.

Far superior to all the other knock off brands, the expansion will actually plug a 6" pipe, the others couldn't plug a 4" without being able to see through the bladder and having it pop under any heat or pressure. The injection baffle is a very nice touch as well

Original purchase slowly leaked air from the bladder but customer service responded quickly and sent another one out without hassle, worked well and is a good price

Wouldn’t hold air with either of the rubber sleeves as soon as I took it out of the package to test it. Tried readjusting the ends multiple times but it still wouldn’t inflate properly. EDIT: After contacting their customer service, they sent me a perfectly working replacement.