Snap Ring polypropylene autosampler microvial, volume 0.5 mL, natural polypropylene vial, O.D. × H × I.D. 12 mm × 32 mm × 6 mm, Snap Ring, pkg of 100 ea, 27253 Snap Ring polypropylene autosampler microvial, volume 0.75 mL, natural polypropylene vial, Snap top, pkg of 100 ea,