Our Best Sellers. WHEATON® µL MicroLiter® Component Kit, 12 x 32mm Autosampler Vials and 11mm Snap Caps With Septa, Pre-Cut, PTFE / Silicone Septa, Amber, Dark Blue. WHEATON® LAB FILE® Sample Vials, Shorty Vials With Caps Attached, 6 mL, 14B Rubber. KIMBLE® Tear-Off Unlined Aluminum Seals, 13 mm, Natural, Tear off, Case of 100.