oem EPA VOA vials with caps and septa-Voa Vial Supplier Septa, 40mL, certified, 40mL Vial amber 0.125 in. bonded septum Thermo Scientific Amber VOA Vials with 0.125″ Septa are available with septum permanently bonded to the cap or unbonded for easy replacement in 20, 40 or 60mL sizes.