Excel Scientific EZP-100, EZ-Pierce Sealing Film, Non-Sterile 70 µm, Polyethylene, 100 Films/Unit - 12-121 | Genesee Scientific Excel Scientific EZP-100, EZ-Pierce Sealing Film, Non-Sterile 70 µm, Polyethylene, 100 Films/Unit - 12-121 | Genesee Scientific