PRE-ASSEMB 548-0154K+548-0636K Pre-assembled Vials (0240+0292): 20ml EPA Screw Neck Vial, 57 x 27.5mm, clear glass, 1st hydrol. class with pre-screwed UltraBond Combination Seal: PP Screw Cap, white, closed top Silicone white/PTFE beige, 45 shore 1 * 1 items