29303-U. volume 1.5 mL, clear glass vial, snap top, PTFE/silicone (with slit), pkg of 100 ea. Pricing. Match Criteria: Product Name, Keyword. Snap Seal™ vials (step), 12 x 32 mm, large opening, 11 mm seal. Snap Seal ™ vials (step), 12 x 32 mm, large opening, 11 mm seal. Product Number.