Gastec Butadiene Gas Detector Tubes. Options:

1,3-Butadiene Detector Tubes
Detection Range: 2.5-100 ppm
(10 tubes, 10 tests per box)
P/N 174L

1,3-Butadiene Detector Tubes
Detection Range: 50-800 ppm
(10 tubes, 10 tests per box)
P/N 174

1,3-Butadiene Detector Tubes
Detection Range: 0.5-5 ppm
(10 tubes, 10 tests per box)
P/N 174LL