Excel Scientific TS-RT2-100, ThermalSeal RT Sealing Film, Non-Sterile 50µm, Polyester, 100 Films/Unit - 12-529 | Genesee Scientific Excel Scientific TS-RT2-100, ThermalSeal RT Sealing Film, Non-Sterile 50µm, Polyester, 100 Films/Unit - 12-529 | Genesee Scientific