Big Blu Subzero Micro Leak Detector 1 Qt. This is the only bubble solution capable of detecting gas leakage down to 0.79 ounces per year. Use on any gas including Oxygen. There is no better solution than OEM’s detector that can find out gas leakages faster.

Brand: Refrigeration Technologies
Manufacturer Part Number: JB-RT-RT150S
Type: Air Conditioning Chemicals
MPN: RT150S
UPC: 017857150321