U Test DrugID FENTANYL GP Burn from a powerful butane

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U Test DrugID FENTANYL GP Burn from a powerful butaneU Test DrugID FENTANYLDescriptionFentanyl Substance TestTests for the presence of fentanyl in powder substanceSafe, easy to use and results within minutesPositive results =The appearance of any red violet color indicates the presence of fentanyl. Any and all color changes may indicate a presence of a potential harmful substance (such as fentanyl, heroin, morphine, codeine, amphetamine or methamphetamine)All results are presumptive, confirmatory