Check the listing for details. Bladder Adapter 3-in-1 Universal Large Openings Automotive EVAP Smoke Machine. Condition: New. Listed at 24.99 USD. 【 3-IN-1 FUNCTION】 BLADDER MODE for injecting smoke into large openings. Insert the deflated bladder and inflate with the built-in hand pump. 【 3-IN-1 FUNCTION】 PLUG MODE for blocking off smoke. Tuck the input hose into the rear of the bladder to crimp it and block off the bladder turning it into an inflatable plug. 【 3-IN-1 FUNCTION】 WIND/WATER LEAK MODE for testing door jambs. How: MAX A/C blower fan. Turn OFF circulation. Close all doors and build positive air pressure inside cabin. Air will naturally escape through leaks in door jambs. Run smoke through Universal Bladder for a slow steady stream of thick smoke. Guide it through your door jambs until you see turbulent air blowing the rising smoke. 【Backup Bladder】 Extra Bladder Included! 【CarbonNitrile】 Industrial & Automotive Grade【 3-IN-1 FUNCTION】 BLADDER MODE for injecting smoke into large openings. Insert the deflated bladder and inflate with the built-in hand pump. 【 3-IN-1 FUNCTION】 PLUG MODE for blocking off smoke. Tuck the input hose into the rear of the bladder to crimp it and block off the bladder turning it into an inflatable plug. 【 3-IN-1 FUNCTION】 WIND/WATER LEAK MODE for testing door jambs. How: MAX A/C blower fan. Turn OFF circulation. Close all doors and build positive air pressure inside cabin. Air will naturally escape through leaks in door jambs. Run smoke through Universal Bladder for a slow steady stream of thick smoke. Guide it through your door jambs until you see turbulent air blowing the rising smoke. 【Backup Bladder】 Extra Bladder Included! 【CarbonNitrile】 Industrial & Automotive Grade