Certified Calibration Gas, 17L bottle, 500 ppm R438A, Balanced in AirQuantity*Get QuoteProduct DescriptionCertified Calibration Gas, 17L bottle, 500 ppm R438A, Balanced in Air, R-32/125/134a/600/601a (8.5+.5,-1.5/45�1.5/44.2�1.5/1.7+.1,-.2/.6+.1,-.2)
