This item has a minimum qty of 3 packs per supplier requirements. PureAmp™ Sealing Membranes are compatible with all standard PCR plates. Four types are available for PCR and qPCR applications; pierceable aluminum, standard transparent, optically clear sticky adhesive, and optically clear pressure-sensitive adhesive, all of which are guaranteed to keep evaporation rates below 5%.• RNase, DNase, DNA, and PCR inhibitor free • Evaporation rates ≤ 5% • Inner packs of 10 membranes