ultra clean EPA vials cap and septa Vials – Sepachrom 40ml EPA Screw Neck Vial,95 x 27.5mm,amber glass,1st hydrolytic class; 24mm PP Screw Cap, Conf 100pz. 60ml EPA Screw Neck Vial,140 x 27.5mm,clear glass,1st hydrolytic class; 24mm PP Screw Cap Conf 100pz.