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For use with GASTEC Precision Gas Analysis Apparatus (item #653072). Range is 0.5 to 10 ppm. Gas concentration markings are on the wall of the tube for direct-read convenience. Box of 10.
A calibrated, glass gas detector tube for use with GASTEC Precision Gas Analysis Apparatus (item #653072). Color change inside the tube allows students to read the gas concentration directly from the tube wall. Range is 0.5 to 10 ppm. Box of 10.
If for any reason you are not satisfied with this item, it is eligible for a return, exchange, refund, or credit up to 180 days from date of purchase. Restrictions may apply. Returns & Exchanges Policy.