Excel Scientific HS-FPL-100 AdvanceSeal Heat Seal, Non-Sterile, Peelable PCR Foil, 100 Films/Unit - 12-547 | Genesee Scientific Excel Scientific HS-FPL-100 AdvanceSeal Heat Seal, Non-Sterile, Peelable PCR Foil, 100 Films/Unit - 12-547 | Genesee Scientific