The Original Big Blu leak detector is used by OEM's and industry professionals worldwide. This is the only bubble/foam solution capable of detecting gas leakage down to 0.65 ounces per year. Use on any gas including Oxygen.
Suitable for use with all gases to detect leaks on any pressurized system. Commonly used in HVAC, plumbing, telecom, aerospace, gas utilities, service industries and MVAC.